%0 Journal Article %A Eisen, M. %T A Global Existence Theorem %J Canadian mathematical bulletin %D 1966 %P 519-520 %V 9 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1966-064-7/ %R 10.4153/CMB-1966-064-7 %F 10_4153_CMB_1966_064_7