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[63]
. 1. . , . , . , . ( : Abraham R.H., Shaw C.D. Dynamics: The Geometry of Behavior. The Visual Mathematics Library. - Santa Cruz: Aerial Press, 1984-1985.)
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[64]
. 2. , . ( : Abraham R.H., Shaw C.D. Dynamics: The Geometry of Behavior. The Visual Mathematics Library. Santa Cruz: Aerial Press, 1984-1985.)
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