@article{DA_2000_7_1_a2, author = {L. Y. Gorbachevskaya}, title = {Two-level standardization problems under conditions when the optimal consumer choice is not unique}, journal = {Diskretnyj analiz i issledovanie operacij}, pages = {35--46}, publisher = {mathdoc}, volume = {7}, number = {1}, year = {2000}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DA_2000_7_1_a2/} }