@article{DA_2000_7_2_a1,
     author = {L. Y. Gorbachevskaya},
     title = {A~two-level problem of the choice of reusable products with the uniqueness condition for consumer choice},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {5--11},
     publisher = {mathdoc},
     volume = {7},
     number = {2},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2000_7_2_a1/}
}