@article{NANO_2016_7_5_a2,
     author = {S. Albeverio and S. Fassari and F. Rinaldi},
     title = {Spectral properties of a symmetric three-dimensional quantum dot with a pair of identical attractive $\delta$-impurities symmetrically situated around the origin {II}},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {803--815},
     publisher = {mathdoc},
     volume = {7},
     number = {5},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2016_7_5_a2/}
}