Geometrical Approaches to Differential Equations: Proceedings of the Fourth Scheveningen Conference on Differential Equations, The Netherlands, August 26-31, 1979 (Lecture Notes in Mathematics, 810) | EKB DL
Geometrical Approaches to Differential Equations: Proceedings of the Fourth Scheveningen Conference on Differential Equations, The Netherlands, August 26-31, 1979 (Lecture Notes in Mathematics, 810)