$a Błędna forma nazwy: Kozlov, Valerij Viktorovič.
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$a Kp. Billiardy : genetičeskoe vvedenie v dinamiku sistem s udarami / V. V. Kozlov, D. V. Treščev. - Moskva, 1991.
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$a Symmetries, topology and resonances in Hamiltonian mechanics / Valerij V. Kozlov. - Berlin, 1996. $b CIP LCC (Kozlov, V. V. (Valerii Viktorovich)) ; (Department of Mathematics Moscow State University, Moscow, Russia)