@article{AUPO_1987__26_1_a8,
     author = {Andres, J\'an},
     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},
     pages = {139--147},
     publisher = {mathdoc},
     volume = {26},
     number = {1},
     year = {1987},
     mrnumber = {1033335},
     zbl = {0706.34032},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_1987__26_1_a8/}
}