@article{ZVMMF_1991_31_3_a12,
     author = {L. I. Minchenko},
     title = {Calculation of directional derivatives in max-min problems with linear constraints},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {454--456},
     year = {1991},
     volume = {31},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1991_31_3_a12/}
}