TY JOUR TI CLUSTER PROCEDURES USE FOR ENHANCEMENT OF THE MANAGEMENT AND PROCESSING OF INFORMATION IN QUEUING SYSTEMS KW cluster analysis KW marketing solutions KW sales efficiency KW data segmentation KW queuing systems JO Scientific and analytical journal «Vestnik Saint-Petersburg university of State fire service of EMERCOM of Russia» AU Korolev, S.A. AU Minkin, D.Y. AU Orlov, N.A. PY 2013 IS 2013 PB Saint-Petersburg University of State Fire Service of Emercom of Russia