%0 Journal Article %A Felipe Alexander Pipicano %A Juan Carlos Muñoz Grajales %T Existence of periodic standing wave solutions for a system describing pulse propagation in an optical fiber %J Revista colombiana de matematicas %D 2019 %P 87-107 %V 53 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RCM_2019_53_1_a6/ %F RCM_2019_53_1_a6