Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{DE_1980_16_11_a0, title = {Mihail {Alekseevi{\v{c}}} {Lavrent'ev}}, journal = {Differencialʹnye uravneni\^a}, pages = {1923--1924}, publisher = {mathdoc}, volume = {16}, number = {11}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1980_16_11_a0/} }
Mihail Alekseevi{\v{c}} Lavrent'ev. Differencialʹnye uravneniâ, Tome 16 (1980) no. 11, pp. 1923-1924. http://geodesic.mathdoc.fr/item/DE_1980_16_11_a0/