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@article{10_4064_ap_21_2_231_237, author = {S. S\k{e}dziwy}, title = {Periodic solutions of $x'' + f(x)x'^{2n} + g(x) = \ensuremath{\mu}p(t)$}, journal = {Annales Polonici Mathematici}, pages = {231--237}, publisher = {mathdoc}, volume = {21}, number = {2}, year = {1968}, doi = {10.4064/ap-21-2-231-237}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-21-2-231-237/} }
TY - JOUR AU - S. Sędziwy TI - Periodic solutions of $x'' + f(x)x'^{2n} + g(x) = μp(t)$ JO - Annales Polonici Mathematici PY - 1968 SP - 231 EP - 237 VL - 21 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-21-2-231-237/ DO - 10.4064/ap-21-2-231-237 LA - en ID - 10_4064_ap_21_2_231_237 ER -
S. Sędziwy. Periodic solutions of $x'' + f(x)x'^{2n} + g(x) = μp(t)$. Annales Polonici Mathematici, Tome 21 (1968) no. 2, pp. 231-237. doi : 10.4064/ap-21-2-231-237. http://geodesic.mathdoc.fr/articles/10.4064/ap-21-2-231-237/
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