Periodic solutions of x" + f(μ, x) = 0
Annales Polonici Mathematici, Tome 36 (1979) no. 1, pp. 29-41
@article{10_4064_ap_36_1_29_41,
author = {G. J. Butler and H. I. Freedman},
title = {Periodic solutions of x" + f(\ensuremath{\mu}, x) = 0},
journal = {Annales Polonici Mathematici},
pages = {29--41},
year = {1979},
volume = {36},
number = {1},
doi = {10.4064/ap-36-1-29-41},
language = {en},
url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-36-1-29-41/}
}
G. J. Butler; H. I. Freedman. Periodic solutions of x" + f(μ, x) = 0. Annales Polonici Mathematici, Tome 36 (1979) no. 1, pp. 29-41. doi: 10.4064/ap-36-1-29-41
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