@article{10_1017_S0017089500000823,
     author = {Leutbecher, Armin},
     title = {\"Uber {Automorphiefaktoren} und die {Dedekindschen} {Summen}},
     journal = {Glasgow mathematical journal},
     pages = {41--57},
     year = {1970},
     volume = {11},
     number = {1},
     doi = {10.1017/S0017089500000823},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500000823/}
}