@article{NANO_2018_9_2_a4,
     author = {R. Carlone and M. Correggi and L. Tentarelli},
     title = {An introduction to the two-dimensional {Schr\"odinger} equation with nonlinear point interactions},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {187--195},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2018_9_2_a4/}
}