@article{IM2_2000_64_6_a3,
     author = {G. G. Laptev},
     title = {The absence of global positive solutions of systems of semilinear elliptic inequalities in cones},
     journal = {Izvestiya. Mathematics},
     pages = {1197--1215},
     year = {2000},
     volume = {64},
     number = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2000_64_6_a3/}
}