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@article{INTO_1999_65_a1, author = {A. F. Izmailov}, title = {2-regularity and bifurcation theorems}, journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory}, pages = {90--117}, publisher = {mathdoc}, volume = {65}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/INTO_1999_65_a1/} }
A. F. Izmailov. 2-regularity and bifurcation theorems. Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory, Selected papers presented at the international conference dedicated to the 90th anniversary of the birth of L. S. Pontryagin (Moscow, Russia, August 31–September 9, 1998). Vol. 4. Optimal control theory, Tome 65 (1999), pp. 90-117. http://geodesic.mathdoc.fr/item/INTO_1999_65_a1/