1.
Applied Equivariant Degree (Differential Equations & Dynamical Systems)
by Zalman Balanov, Wieslaw Kra...
ISBN: 9781601330017
List Price: $80.00
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Theory of Degrees With Applications to Bifurcations and Differential Equations
by Krawcewicz, Wieslaw, Wu, Ji...
ISBN: 9780471157403
List Price: $198.50