%0 Journal Article %A Guíñez, Víctor %A Sáez, Eduardo %A Szántó, Iván %T Limit Cycles Close to Infinity of Certain Non-Linear Differential Equations %J Canadian mathematical bulletin %D 1990 %P 55-59 %V 33 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1990-009-8/ %R 10.4153/CMB-1990-009-8 %F 10_4153_CMB_1990_009_8