@article{ZVMMF_1981_21_4_a10,
     author = {M. A. Veliev and D. K. Kyazimov},
     title = {Approximation solution of {Tricomi's} problem by linear programming},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {945--951},
     publisher = {mathdoc},
     volume = {21},
     number = {4},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1981_21_4_a10/}
}