Two-stage transportation problem with constraint on the number intermediate locations von P. I. Stetsiuk, O. P. Bysaha, S. S. Trehubenko

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Two-stage transportation problem modifications and their applications von P. I. Stetsiuk, V. O. Stovba, S. S. Trehubenko, O. M. Khomiak

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Surface absolute magnetic survey on the backbone of the points of secular path in Ukraine for the epoch of 2005 von Yu. Maksymchuk, M. I. Orliuk, V. I. Trehubenko, Yu. M. Horodyskyi, V. P. Miasoiedov, Ye. F. Nakalov

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Results of component measurements of the earth's magnetic field at repeat stations of the Ukrainian network during 2005-2010 von Yu. Maksymchuk, M. I. Orliuk, V. I. Trehubenko, D. O. Marchenko, Ye. F. Nakalov, I. O. Chobotok

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