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New directions in dynamical systems Автор: Bedford T., Swift H. Год: 1988 
Topological methods for variational problems with symmetries Автор: Thomas Bartsch Год: 1993 
PiecewiseSmooth Dynamical Systems: Theory and Applications Автор: Mario di Bernardo Год: 2007 
Piecewisesmooth dynamical systems: theory and applications Автор: Mario di Bernardo Год: 2007 
Ionosphere and applied aspects of radio communication and radar Автор: Nathan Blaunstein,Eugeniu Plohotniuc Год: 2008 