@article{AFM_1983_8_2_a0,
     author = {Karl Doppel and Niels Jacob},
     title = {Zur {Konstruktion} periodischer {L\"osungen} von {Pseudodifferentialgleichungen} mit {Hilfe} von {Operatorenalgebren}},
     journal = {Annales Fennici Mathematici},
     pages = {193--217},
     publisher = {mathdoc},
     volume = {8},
     number = {2},
     year = {1983},
     doi = {10.5186/aasfm.1983.0808},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1983.0808/}
}