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@article{KUKZ_1967_4_4_a1, author = {Yu. S. Baburin}, title = {The problem $T_{3,2,1}$ for the {Lavrent'ev--Bicadze} equation}, journal = {Trudy seminara po kraevym zada\v{c}am}, pages = {11--21}, publisher = {mathdoc}, volume = {4}, number = {4}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KUKZ_1967_4_4_a1/} }
Yu. S. Baburin. The problem $T_{3,2,1}$ for the Lavrent'ev--Bicadze equation. Trudy seminara po kraevym zadačam, Trudy Seminara po Kraevym Zadacham, Tome 4 (1967) no. 4, pp. 11-21. http://geodesic.mathdoc.fr/item/KUKZ_1967_4_4_a1/