@article{ZVMMF_1991_31_1_a2,
     author = {F. V. Lubyshev},
     title = {Approximation and regularization of optimal control problems for a~non-selfadjoint elliptic equation with variable coefficients},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {17--30},
     publisher = {mathdoc},
     volume = {31},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1991_31_1_a2/}
}