%0 Journal Article %A Q-Heung Choi %A Hunan Xu %T Nonlinear oscillations for the one-dimensional wave equation with a jump nonlinearity %J Differencialʹnye uravneniâ %D 2006 %P 1380-1388 %V 42 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2006_42_10_a8/ %G ru %F DE_2006_42_10_a8