Hu, Shouchuan. Handbook of multivalued analysis : volume I : theory / Shouchuan Hu, Nikolaos S. Papageorgiou. - [S.l.] : Springer, 1997. - 980 p. ; 25 cm. - Mathematics and its applications. . - Mathematics and its applications. . ISBN: 0792346823 9780792346821 Dewey Class. No.: 515.2