@article{MOMA_1971__75_177570,
     author = {K. Doppel},
     title = {Identit\"atss\"atze f\"ur {Laurentreihen.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {402--409},
     publisher = {mathdoc},
     volume = {75},
     year = {1971},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1971__75_177570/}
}