@article{10_1017_S001708951000073X,
     author = {MARENO, A.},
     title = {MAXIMUM {PRINCIPLES} {FOR} {SOME} {HIGHER-ORDER} {SEMILINEAR} {ELLIPTIC} {EQUATIONS}},
     journal = {Glasgow mathematical journal},
     pages = {313--320},
     year = {2011},
     volume = {53},
     number = {2},
     doi = {10.1017/S001708951000073X},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S001708951000073X/}
}