@article{120255,
author = {Vladim\'\i r Vl\v cek},
title = {Periodic solutions of a parametric nonlinear third-order differential equation},
journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
volume = {30},
year = {1991},
pages = {159-188},
zbl = {0777.34031},
mrnumber = {1166435},
language = {en},
url = {http://dml.mathdoc.fr/item/120255}
}
Vlček, Vladimír. Periodic solutions of a parametric nonlinear third-order differential equation. Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, Tome 30 (1991) pp. 159-188. http://gdmltest.u-ga.fr/item/120255/
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