@article{1250128114,
author = {Miller, R.K. and Skar, S.J.},
title = {On existence of limit cycles in systems with discontinuous nonlinear terms},
journal = {Rocky Mountain J. Math.},
volume = {12},
number = {4},
year = {1982},
pages = { 707-722},
language = {en},
url = {http://dml.mathdoc.fr/item/1250128114}
}
Miller, R.K.; Skar, S.J. On existence of limit cycles in systems with discontinuous nonlinear terms. Rocky Mountain J. Math., Tome 12 (1982) no. 4, pp. 707-722. http://gdmltest.u-ga.fr/item/1250128114/