@article{AFST_1985_5_7_2_137_0,
     author = {Trombetti, Guido and Vazquez, Juan Luis},
     title = {A symmetrization result for elliptic equations with lower-order terms},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {137--150},
     publisher = {Universit\'e Paul Sabatier},
     address = {Toulouse},
     volume = {Ser. 5, 7},
     number = {2},
     year = {1985},
     mrnumber = {842766},
     zbl = {0617.35036},
     language = {en},
     url = {http://archive.numdam.org/item/AFST_1985_5_7_2_137_0/}
}