@article{10_21136_CMJ_1979_101597,
     author = {Rosenberger, Gerhard and Tessun, Franz},
     title = {\"Uber vollst\"andige {Automorphismengruppen} und {Gleichungen} in der {Modulgruppe}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {192--201},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {1979},
     doi = {10.21136/CMJ.1979.101597},
     mrnumber = {529508},
     zbl = {0423.20040},
     language = {ge},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1979.101597/}
}