%0 Journal Article %A Campbell, L. L. %T Existence of Solutions of an Ill-Posed Problem for the Vibrating String %J Canadian mathematical bulletin %D 1982 %P 29-36 %V 25 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1982-003-6/ %R 10.4153/CMB-1982-003-6 %F 10_4153_CMB_1982_003_6