Ho Yu-Chi Ordinal optimization Soft optimization for hard problems. - New York Springer 2007 - xiv, 317p. cm. ISBN: 4408.2489999999998 Standard No.: 107240 Source: 594, 23/03/2010, Insat Books and Periodicals Textual Subjects--Topical Terms: Mathematics Dewey Class. No.: B28931, P7