Nonlinear semigroups, partial differential equations, and attractors proceedings of a symposium held in Washington, D.C., August 5-8, 1985 / edited by T.L. Gill and W.W. Zachary. - Gill, T. L. (Tepper L.), 1941-; Zachary, W. W., 1935- (Lecture notes in mathematics (Springer-Verlag) ;, 1987)