%0 Journal Article %A Oddson, J. K. %T Phragmèn-Lindelöf and Comparison Theorems for Elliptic-Parabolic Differential Equations %J Canadian journal of mathematics %D 1967 %P 864-871 %V 19 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-081-1/ %R 10.4153/CJM-1967-081-1 %F 10_4153_CJM_1967_081_1