TY  - JOUR
AU  - G. A. Serëgin
TI  - On the differentiability of local extremals of variational problems of the mechanics of rigidly viscoplastic media
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1987
SP  - 23
EP  - 30
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1987_10_a4/
LA  - ru
ID  - IVM_1987_10_a4
ER  -