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@article{DA_2001_8_2_a4, author = {R. M. Larin and A. V. Pyatkin}, title = {A~two-level assignment problem}, journal = {Diskretnyj analiz i issledovanie operacij}, pages = {42--51}, publisher = {mathdoc}, volume = {8}, number = {2}, year = {2001}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DA_2001_8_2_a4/} }
R. M. Larin; A. V. Pyatkin. A~two-level assignment problem. Diskretnyj analiz i issledovanie operacij, Tome 8 (2001) no. 2, pp. 42-51. http://geodesic.mathdoc.fr/item/DA_2001_8_2_a4/