(Timoshenko) [11(23). 12.1878, . , , - 29.5.1972, , ], . (1901), 1903-06 . 1907-11 , 1912-17 , 1917 , (1918). 1920 . 1922 . 1923-27 "", 1927 , 1936 . 1960 . . , , , . . ( , , , , .). , " " (1911) " " (. 1-2, 1914-16). . ( 1928).

.: , , ., 1971: , . ., ., 1975 (. . ); , ., 1975 (.).


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