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@article{IVM_1971_1_a14, author = {B. M. Gagaev}, title = {Mikhail {Alekseevich} {Lavrent'ev} (on his 70th bithday)}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {112--113}, publisher = {mathdoc}, number = {1}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1971_1_a14/} }
B. M. Gagaev. Mikhail Alekseevich Lavrent'ev (on his 70th bithday). Izvestiâ vysših učebnyh zavedenij. Matematika, no. 1 (1971), pp. 112-113. http://geodesic.mathdoc.fr/item/IVM_1971_1_a14/