[Lecture Notes in Mathematics] Bifurcations of Planar Vector Fields Volume 1455 || Periodic lines of curvature bifurcating from Darbouxian umbilical connections
Françoise, Jean-Pierre, Roussarie, RobertVolume:
10.1007/BF
Year:
1990
Language:
english
DOI:
10.1007/BFb0085394
File:
PDF, 2.07 MB
english, 1990