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1Book
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2by Broer Hendrik Wolter, Huitema George B., Takens Floris, Braaksma Boele Lieuwe Jan
American Mathematical Society C 1990Book -
3by Geometry symposium
Springer-Verlag 1981, cop. 1981Book -
4by International workshop on dynamical systems and bifurcations
Springer-Verlag copyright 1985Book