Research of legal and regulatory education system in Ukraine in 1917-1928 on the basis of archival material von D. Vasylenko, L. Butko

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The history of dermatovenerologic service in Kremenchuk (1881-1981) by archival documents von L. Butko, V. Maslak, D. Vasylenko, V. Butko, A. Ozhema

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