%0 Journal Article %A Erbe, Lynn %T Disconjugacy Conditions for the Third Order Linear Differential Equation %J Canadian mathematical bulletin %D 1969 %P 603-613 %V 12 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-078-9/ %R 10.4153/CMB-1969-078-9 %F 10_4153_CMB_1969_078_9