@article{AFM_1976_2_1_a23,
     author = {Heinrich Begehr and Robert P. Gilbert},
     title = {Das {Randwert-Normproblem} f\"ur ein fastlineares elliptisches {System} und eine {Anwendung}},
     journal = {Annales Fennici Mathematici},
     pages = {179--184},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1976},
     doi = {10.5186/aasfm.1977.0301},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1977.0301/}
}