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      <title>"Сумуємо тяжкою втратою науки…": вшанування смерті в археологічному співтоваристві УСРР другої половини 1920-х – початку 1930-х рр.</title>
      <pubDate>Fri, 17 Apr 2026 18:33:18 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/nasplib_isofts_kiev_ua-123456789-211753</link>
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      <author>Яненко, А.</author>
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      <dc:date>2020</dc:date>
      <dc:creator>Яненко, А.</dc:creator>
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      <title>Groups with finiteness conditions and other restrictions for subgroups</title>
      <pubDate>Tue, 24 Mar 2026 03:44:17 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9136</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9136</guid>
      <author>Charin , V. S.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Charin , V. S.</dc:creator>
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      <title>Naum Ilyich Akhiezer (on his 70th birthday)	</title>
      <pubDate>Tue, 24 Mar 2026 03:40:19 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8562</link>
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      <author>Editorial Board</author>
      <dc:format>Artikel</dc:format>
      <dc:date>1971</dc:date>
      <dc:creator>Editorial Board</dc:creator>
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    <item>
      <title>Otto Yulievich Shmidt (on his 80th birth) </title>
      <pubDate>Tue, 24 Mar 2026 03:38:29 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8328</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8328</guid>
      <author>Chernikov, S. N.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>1971</dc:date>
      <dc:creator>Chernikov, S. N.</dc:creator>
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      <title>Yury Dmitrievich Sokolov (on his seventieth birthday)</title>
      <pubDate>Tue, 24 Mar 2026 03:38:16 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8316</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8316</guid>
      <author>Mitropolsky, Y. A.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>1966</dc:date>
      <dc:creator>Mitropolsky, Y. A.</dc:creator>
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      <title>О некоторых многозначных соответствиях в проективной геометрии</title>
      <pubDate>Tue, 24 Mar 2026 03:33:42 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-7757</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-7757</guid>
      <author>Мандзюк, А. И.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>1953</dc:date>
      <dc:creator>Мандзюк, А. И.</dc:creator>
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      <title>Gauss–Kuzmin problem for the difference Engel-series representation of real numbers</title>
      <pubDate>Tue, 24 Mar 2026 03:31:49 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-7159</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-7159</guid>
      <author>Moroz , M. P.</author>
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      <dc:date>2022</dc:date>
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      <title>Approximation of holomorphic functions by Cesàro means</title>
      <pubDate>Tue, 24 Mar 2026 03:31:40 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-7143</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-7143</guid>
      <author>Rovenska , O. G.</author>
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      <dc:date>2022</dc:date>
      <dc:creator>Rovenska , O. G.</dc:creator>
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      <title>An analog of the Men’shov – Trokhimchuk theorem for monogenic functions in a three-dimensional commutative algebra</title>
      <pubDate>Tue, 24 Mar 2026 03:29:38 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-6658</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-6658</guid>
      <author>Tkachuk, M. V.</author>
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      <dc:date>2021</dc:date>
      <dc:creator>Tkachuk, M. V.</dc:creator>
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      <title>Professor Boris Yakovlevich Bukreev (On the occasion of the 90th birthday and 65th scientific and pedagogical activity)</title>
      <pubDate>Tue, 24 Mar 2026 03:27:24 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-6409</link>
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      <author>Editorial board, .</author>
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      <dc:date>1950</dc:date>
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      <title>Asymptotic integration of singularly perturbed differential algebraic equations with turning points. Part I</title>
      <pubDate>Tue, 24 Mar 2026 03:26:46 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-6261</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-6261</guid>
      <author>Samoilenko , A. M.</author>
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      <dc:date>2020</dc:date>
      <dc:creator>Samoilenko , A. M.</dc:creator>
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    <item>
      <title>Relative growth of Dirichlet series with different abscissas of absolute convergence</title>
      <pubDate>Tue, 24 Mar 2026 03:26:19 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-6168</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-6168</guid>
      <author>Mulyava, O. M.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2020</dc:date>
      <dc:creator>Mulyava, O. M.</dc:creator>
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    <item>
      <title>To the memory of Valentin Anatol&amp;#039;evich Zmorovich</title>
      <pubDate>Tue, 24 Mar 2026 03:20:12 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5668</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5668</guid>
      <author>Baranovskii, F. T.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Baranovskii, F. T.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Institute of Mathematics of The Ukrainian National Academy of Sciences: 60 years of development</title>
      <pubDate>Tue, 24 Mar 2026 03:19:16 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5606</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5606</guid>
      <author>Mitropolskiy, Yu. A.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Mitropolskiy, Yu. A.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Evgenii Yakovlevich Remez</title>
      <pubDate>Tue, 24 Mar 2026 03:15:07 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5355</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5355</guid>
      <author>Dzyadyk, V. K.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>1996</dc:date>
      <dc:creator>Dzyadyk, V. K.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Naum Il&amp;#039;ich Akhiezer (on his 100-th birthday)</title>
      <pubDate>Tue, 24 Mar 2026 02:56:05 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-4250</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-4250</guid>
      <author>Marchenko, V. O.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2001</dc:date>
      <dc:creator>Marchenko, V. O.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Jacobi fields on a Riemann manifold</title>
      <pubDate>Tue, 24 Mar 2026 02:44:47 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3558</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3558</guid>
      <author>Bondarenko, V. G.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2006</dc:date>
      <dc:creator>Bondarenko, V. G.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>On the Schur theorem for n-ary groups</title>
      <pubDate>Tue, 24 Mar 2026 02:43:33 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3491</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3491</guid>
      <author>Galmak, A. M.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2006</dc:date>
      <dc:creator>Galmak, A. M.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Expansion of weighted pseudoinverse matrices with singular weights into matrix power products and iteration methods</title>
      <pubDate>Tue, 24 Mar 2026 02:41:35 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3387</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3387</guid>
      <author>Galba, E. F.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Galba, E. F.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Mark Grigorievich Krein (to the centenary of his birth)</title>
      <pubDate>Tue, 24 Mar 2026 02:40:36 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3333</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3333</guid>
      <author>Adamyan, V. M.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Adamyan, V. M.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Betweenness relation and isometric imbeddings of metric spaces</title>
      <pubDate>Tue, 24 Mar 2026 02:36:17 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3103</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3103</guid>
      <author>Dovgoshei, A. A.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2009</dc:date>
      <dc:creator>Dovgoshei, A. A.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Life and work of N. N. Bogolyubov (on his 100th birthday)</title>
      <pubDate>Tue, 24 Mar 2026 02:35:58 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3085</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3085</guid>
      <author>Samoilenko, A. M.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2009</dc:date>
      <dc:creator>Samoilenko, A. M.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Inequality of the Turan type for trigonometric polynomials and conjugate trigonometric polynomials in $L_0$</title>
      <pubDate>Tue, 24 Mar 2026 02:35:43 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3073</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3073</guid>
      <author>Adamov, A. N.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2009</dc:date>
      <dc:creator>Adamov, A. N.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Constructive description of monogenic functions in a harmonic algebra of the third rank</title>
      <pubDate>Tue, 24 Mar 2026 02:33:12 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2938</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2938</guid>
      <author>Plaksa, S. A.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2010</dc:date>
      <dc:creator>Plaksa, S. A.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>On Hankel determinants of functions given by their expansions in $P$-fractions</title>
      <pubDate>Tue, 24 Mar 2026 02:31:55 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2870</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2870</guid>
      <author>Buslaev, V. I.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2010</dc:date>
      <dc:creator>Buslaev, V. I.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Solvability of inhomogeneous boundary-value problems for fourth-order differential equations</title>
      <pubDate>Tue, 24 Mar 2026 02:30:36 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2803</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2803</guid>
      <author>Avci, H.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2011</dc:date>
      <dc:creator>Avci, H.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Existence and uniqueness of weighted pseudoinverse matrices and weighted normal pseudosolutions with singular weights</title>
      <pubDate>Tue, 24 Mar 2026 02:28:35 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2700</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2700</guid>
      <author>Galba, E. F.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2011</dc:date>
      <dc:creator>Galba, E. F.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Smoothness of functions in the metric spaces Lψ</title>
      <pubDate>Tue, 24 Mar 2026 02:27:44 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2653</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2653</guid>
      <author>Pichugov, S. A.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2012</dc:date>
      <dc:creator>Pichugov, S. A.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Approximation of holomorphic functions of Zygmund class by Fejer means</title>
      <pubDate>Tue, 24 Mar 2026 02:27:32 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2648</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2648</guid>
      <author>Savchuk, V. V.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2012</dc:date>
      <dc:creator>Savchuk, V. V.</dc:creator>
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    <item>
      <title>Extension of holomorphic mappings for few moving hypersurfaces</title>
      <pubDate>Tue, 24 Mar 2026 02:26:17 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2584</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2584</guid>
      <author>Si, Duc Quang</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2012</dc:date>
      <dc:creator>Si, Duc Quang</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Iteration process for multiple Rogers-Ramanujan identities</title>
      <pubDate>Tue, 24 Mar 2026 02:25:46 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2559</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2559</guid>
      <author>Chu, W.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2012</dc:date>
      <dc:creator>Chu, W.</dc:creator>
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    <item>
      <title>On the 100th birthday of O. Yu. Ishlinskii</title>
      <pubDate>Tue, 24 Mar 2026 02:25:17 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2533</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2533</guid>
      <author>Lukovsky, I. O.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2013</dc:date>
      <dc:creator>Lukovsky, I. O.</dc:creator>
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      <title>On the Logarithmic Residues of Monogenic functions in a Three-Dimensional Harmonic Algebra with Two-Dimensional Radical</title>
      <pubDate>Tue, 24 Mar 2026 02:24:18 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2482</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2482</guid>
      <author>Plaksa, S. A.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2013</dc:date>
      <dc:creator>Plaksa, S. A.</dc:creator>
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      <title>Constructive description of monogenic functions in a three-dimensional harmonic algebra with one-dimensional radical</title>
      <pubDate>Tue, 24 Mar 2026 02:23:40 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2450</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2450</guid>
      <author>Plaksa, S. A.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2013</dc:date>
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      <title>Approximations by Fourier Sums on the Sets $L^{ψ} L^{P(∙)}$</title>
      <pubDate>Tue, 24 Mar 2026 02:20:15 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2181</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2181</guid>
      <author>Chaichenko, S. O.</author>
      <dc:format>Artikel</dc:format>
      <dc:date>2014</dc:date>
      <dc:creator>Chaichenko, S. O.</dc:creator>
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      <title>Multiple Haar Basis and its Properties</title>
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      <title>Multiple Haar basis and m-term appriximations for functions from the Besov
classes. I</title>
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      <title>Two-weighted inequalities for Riesz potential
in $p$-convex weighted modular Banach function spaces</title>
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      <title>Mykhailo
Pylypovych Kravchuk (27.09.1892 – 09.03.1942), famous ukrainian mathematician
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      <pubDate>Tue, 24 Mar 2026 02:12:26 +0000</pubDate>
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