Redreev P.G. Г. Russia Omskij filial Instituta matematiki SO RAN, Omskij filial Sibirskogo otdeleniya Rossijskoj akademii nauk, ul. Pevcova, 13, Omsk, Omskaya obl., 644043 redreev@mail.ru Author's articles Construction of Hierarchies in Multidimensional Data Models
