@article{MZ_1951__54_169211,
     author = {Karl Nickel},
     title = {L\"osung eines {Integralgleichungssystems} aus der {Tragfl\"ugeltheorie.}},
     journal = {Mathematische Zeitschrift},
     pages = {81--96},
     publisher = {mathdoc},
     volume = {54},
     year = {1951},
     zbl = {0042.10803},
     url = {http://geodesic.mathdoc.fr/item/MZ_1951__54_169211/}
}