@article{NANO_2018_9_2_a0,
     author = {J. F. Brasche and R. Fulsche},
     title = {Approximation of eigenvalues of {Schr\"odinger} operators},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {145--161},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2018_9_2_a0/}
}