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@article{DA_1999_6_2_a4, author = {R. M. Larin and M. Yu. Kalugina}, title = {A~problem of constructing a~hierarchical structure}, journal = {Diskretnyj analiz i issledovanie operacij}, pages = {42--47}, publisher = {mathdoc}, volume = {6}, number = {2}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DA_1999_6_2_a4/} }
R. M. Larin; M. Yu. Kalugina. A~problem of constructing a~hierarchical structure. Diskretnyj analiz i issledovanie operacij, Tome 6 (1999) no. 2, pp. 42-47. http://geodesic.mathdoc.fr/item/DA_1999_6_2_a4/