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@article{MS2_1978__43_166619, author = {G\"oran Wanby}, title = {A generalization of the {Phragm\'en-Lindel\"of} principle for elliptic differential equations.}, journal = {Mathematica Scandinavica}, pages = {259--274}, publisher = {mathdoc}, volume = {43}, year = {1978}, zbl = {0452.31001}, url = {http://geodesic.mathdoc.fr/item/MS2_1978__43_166619/} }
Göran Wanby. A generalization of the Phragmén-Lindelöf principle for elliptic differential equations.. Mathematica Scandinavica, Tome 43 (1978), pp. 259-274. http://geodesic.mathdoc.fr/item/MS2_1978__43_166619/