@article{ELMA_1991__46_2_141520,
     author = {David S. Tselnik},
     title = {Constructing the {Neumann} series - an example.},
     journal = {Elemente der Mathematik},
     pages = {165--169},
     publisher = {mathdoc},
     volume = {46},
     number = {2},
     year = {1991},
     zbl = {0752.45001},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1991__46_2_141520/}
}