@article{MM_1996_8_7_a5,
     author = {E. S. Levitin},
     title = {Two-stage models of the optimization},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {45--54},
     publisher = {mathdoc},
     volume = {8},
     number = {7},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1996_8_7_a5/}
}