@article{MTA_2019_4_2_a0,
     author = {Giovanni Anello},
     title = {Existence results and strong maximum principle for a resonant sublinear elliptic problem},
     journal = {Minimax theory and its applications},
     year = {2019},
     volume = {4},
     number = {2},
     zbl = {1432.35069},
     url = {http://geodesic.mathdoc.fr/item/MTA_2019_4_2_a0/}
}