TY  - BOOK
AU  - Krasnov, M. L.
AU  - Makarenko, G. I.
AU  - Kisalev, A. I.
AU  - Yankovsky, George
TI  - Problems and exercises in the calculus of variations
U1  - 515.64 
PY  - 1975///
CY  - Moscow
PB  - MIR Publication
N1  - "Translated from the Russian by George Yankovsky"
ER  -