Ketov Khrisanf Fedorovich (1887-1948) A letter to a student of the Leningrad Polytechnic Institute Morozova Irina Vladimirovna i...

Ketov Khrisanf Fedorovich (1887-1948) A letter to a student of the Leningrad Polytechnic Institute Morozova Irina Vladimirovna in Leningrad.Moscow, June 11, 1944 [On the topic of the diploma project].- 1944. -Doctor of Technical Sciences, Professor of the Leningrad Polytechnic Institute.M.I. Kalinina.15x13,..Electronic copy source: PB