@article{NANO_2018_9_2_a3,
     author = {S. Fassari and M. Gadella and M. L. Glasser and L. M. Nieto and F. Rinaldi},
     title = {Level crossings of eigenvalues of the {Schr\"odinger} {Hamiltonian} of the isotropic harmonic oscillator perturbed by a central point interaction in different dimensions},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {179--186},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2018_9_2_a3/}
}