@article{IM2_1974_8_4_a6,
     author = {I. S. Arshon},
     title = {Phragm\'en--Lindel\"of theorems for the solutions of an elliptic system in two independent variables with constant coefficients},
     journal = {Izvestiya. Mathematics },
     pages = {909--936},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {1974},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1974_8_4_a6/}
}