Shimizu, Kiyotaka. Nondifferentiable and two-level mathematical programming / Kiyotaka Shimizu, Yo Ishizuka, Jonathan F. Bard. - Boston : Kluwer Academic, c1997. - xii, 470 p. : ill. ; 24 cm. Includes index. Includes bibliographical references. ISBN: 0792398211 (hbk.) Subjects--Topical Terms: Programming (Mathematics)