%0 Journal Article %A Chen, Yung-Ming %T Some integrability theorems %J Glasgow mathematical journal %D 1965 %P 101-108 %V 7 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S2040618500035255/ %R 10.1017/S2040618500035255 %F 10_1017_S2040618500035255