@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/}
}