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[Lecture Notes in Mathematics] Differential Equations Volume 957 || Structurally stable second order differential equations
Guedes de Figueiredo, Djairo, Hönig, Chaim SamuelVolume:
10.1007/BF
Year:
1982
DOI:
10.1007/BFb0066244
File:
PDF, 702 KB
1982