@article{ZVMMF_1994_34_7_a2,
     author = {I. S. Litvinchev},
     title = {The use of lower bounds in minimization by the interior-point method},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {978--983},
     year = {1994},
     volume = {34},
     number = {7},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1994_34_7_a2/}
}