@article{1077467213, author = {Loud, W. S.}, title = {Boundedness and convergence of solutions of $x''+cx'+g(x)=e(t)$}, journal = {Duke Math. J.}, volume = {24}, number = {1}, year = {1957}, pages = { 63-72}, language = {en}, url = {http://dml.mathdoc.fr/item/1077467213} }
Loud, W. S. Boundedness and convergence of solutions of $x''+cx'+g(x)=e(t)$. Duke Math. J., Tome 24 (1957) no. 1, pp. 63-72. http://gdmltest.u-ga.fr/item/1077467213/