@article{MZ_1951__55_251810,
     author = {Martin Kneser},
     title = {Nachtrag zu der {Arbeit} },
     journal = {Mathematische Zeitschrift},
     pages = {400--400},
     publisher = {mathdoc},
     volume = {55},
     year = {1951},
     url = {http://geodesic.mathdoc.fr/item/MZ_1951__55_251810/}
}