@article{10_1017_S0017089514000457,
     author = {HE, HAIYANG},
     title = {SYMMETRY {AND} {EXISTENCE} {OF} {SOLUTIONS} {OF} {SEMI-LINEAR} {ELLIPTIC} {SYSTEMS} {IN} {HYPERBOLIC} {SPACE}},
     journal = {Glasgow mathematical journal},
     pages = {519--541},
     year = {2015},
     volume = {57},
     number = {3},
     doi = {10.1017/S0017089514000457},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089514000457/}
}