Numerical methods for ordinary differential equations proceedings of the workshop held in L'Aquila (Italy), Sept. 16-18, 1987 / A. Bellen, C.W. Gear, E. Russo (eds.). - Bellen, A. (Alfredo), 1941-; Gear, C. William (Charles William), 1935-; Russo, E. (Elvira), 1940- (Lecture notes in mathematics (Springer-Verlag) ;, 1989)