@article{120189, author = {J\'an Andres}, title = {Dynamical systems modelled by third order differential equations with special respect to the influence of the restoring term on the properties of solutions}, journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica}, volume = {26}, year = {1987}, pages = {139-147}, zbl = {0706.34032}, mrnumber = {1033335}, language = {en}, url = {http://dml.mathdoc.fr/item/120189} }
Andres, Ján. Dynamical systems modelled by third order differential equations with special respect to the influence of the restoring term on the properties of solutions. Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, Tome 26 (1987) pp. 139-147. http://gdmltest.u-ga.fr/item/120189/
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