%0 Journal Article %A Clements, John C. %T Existence Theorems for Some Non-Linear Equations of Evolution %J Canadian journal of mathematics %D 1970 %P 726-745 %V 22 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-083-2/ %R 10.4153/CJM-1970-083-2 %F 10_4153_CJM_1970_083_2