@article{RRACEFN_1997_1997_1_a6,
     author = {Alziary, B\'en\'edicte and  Cardoulis, Laure and  Fleckinger-Pell\'e, Jacqueline},
     title = {Maximun {Principle} and existence of solutions for elliptic systems involving schr\"odinger operators},
     journal = {Revista de la Real Academia de Ciencias Exactas, F{\'\i}sicas y Naturales },
     pages = {47-52},
     publisher = {mathdoc},
     volume = {91},
     number = {1},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RRACEFN_1997_1997_1_a6/}
}