الوصف
منشور في:Vyp. 1-
وصف المادة:Some issues from Vyp. 22- have also a distinctive title.
Published by: Gos. izd-vo Fiziko-matematicheskoĭ literatury, 1958-1962; "Nauka," 1966-
وصف مادي:v. : ill. ; 21 cm.
تدمد:0579-0298