@article{1206139727,
author = {Yorinaga, Masataka},
title = {Bifurcation of a periodic solution of van der Pol's equation with the harmonic forcing term},
journal = {J. Sci. Hiroshima Univ. Ser. A-I Math.},
volume = {26},
number = {2},
year = {1962},
pages = { 51-70},
language = {en},
url = {http://dml.mathdoc.fr/item/1206139727}
}
Yorinaga, Masataka. Bifurcation of a periodic solution of van der Pol's equation with the harmonic forcing term. J. Sci. Hiroshima Univ. Ser. A-I Math., Tome 26 (1962) no. 2, pp. 51-70. http://gdmltest.u-ga.fr/item/1206139727/