@article{10_4153_CJM_1967_081_1,
     author = {Oddson, J. K.},
     title = {Phragm\`en-Lindel\"of and {Comparison} {Theorems} for {Elliptic-Parabolic} {Differential} {Equations}},
     journal = {Canadian journal of mathematics},
     pages = {864--871},
     year = {1967},
     volume = {19},
     number = {1},
     doi = {10.4153/CJM-1967-081-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-081-1/}
}