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@article{MM2_1981__36_154822, author = {Seppo Granlund}, title = {A {Phragm\'en} - {Lindel\"of} {Principle} for {Subsolutions} of {Quasi} - {Linear} {Equations.}}, journal = {Manuscripta mathematica}, pages = {355--365}, publisher = {mathdoc}, volume = {36}, year = {1981}, zbl = {0506.35033}, url = {http://geodesic.mathdoc.fr/item/MM2_1981__36_154822/} }
Seppo Granlund. A Phragmén - Lindelöf Principle for Subsolutions of Quasi - Linear Equations.. Manuscripta mathematica, Tome 36 (1981), pp. 355-365. http://geodesic.mathdoc.fr/item/MM2_1981__36_154822/