Viertl Reinhard Statistical methods for fuzzy data - Chichester John Wiley 2011 - xii, 256p cm. Bibliography: P 251-52; Glossary: P 245-46 ISBN: 9780470699454 4180.7600000000002 Source: 2491, 14/11/2011, The Bookseller General Book Subjects--Topical Terms: Economics Dewey Class. No.: B316:(B), Q1