@article{MASLO_1991__41_4_a0, author = {Andres, Jan and Vl\v{c}ek, Vladim{\'\i}r}, title = {Periodic solutions of the third order parametric differential equations involving large nonlinearities}, journal = {Mathematica slovaca}, pages = {337--349}, publisher = {mathdoc}, volume = {41}, number = {4}, year = {1991}, mrnumber = {1149042}, zbl = {0753.34025}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1991__41_4_a0/} }