@article{ZVMMF_1995_35_7_a4,
     author = {A. F. Albu},
     title = {Calculation of the gradient in optimal control problems with a discontinuous right-hand side},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1058--1066},
     year = {1995},
     volume = {35},
     number = {7},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1995_35_7_a4/}
}