@article{ZVMMF_2001_41_12_a2,
     author = {A. S. Strekalovskii},
     title = {Extremal problems with d.c.-contraints},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1833--1843},
     publisher = {mathdoc},
     volume = {41},
     number = {12},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2001_41_12_a2/}
}