Box, George E. P. Response surfaces, mixtures, and ridge analyses / George E.P. Box, Norman R. Draper - 2nd ed. - Hoboken, N.J. : John Wiley, 2007 - xiv, 857 p. : ill. ; 26 cm. Includes bibliographical references (p. 757-850) and index ISBN: 9780470053577 (cloth) 0470053577 (cloth) RM393.13 Subjects--Topical Terms: Experimental designResponse surfaces (Statistics)Mixture distributions (Probability theory)Ridge regression (Statistics)