@article{RUMI_2019_1_4_2_a5,
     author = {Ros-Oton, Xavier and Serra, Joaquim},
     title = {Understanding singularitiesin free boundary problems},
     journal = {Matematica, cultura e societ\`a : rivista dell'Unione Matematica Italiana},
     pages = {107--118},
     publisher = {mathdoc},
     volume = {Ser. 1, 4},
     number = {2},
     year = {2019},
     zbl = {0985.49001},
     mrnumber = {3965683},
     language = {it},
     url = {https://geodesic-test.mathdoc.fr/item/RUMI_2019_1_4_2_a5/}
}