@article{ZVMMF_2008_48_5_a3,
     author = {I. S. Litvinchev and S. Rangel},
     title = {Comparison of {Lagrangian} bounds for one class of generalized assignment problems},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {779--787},
     publisher = {mathdoc},
     volume = {48},
     number = {5},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2008_48_5_a3/}
}