@article{MZ_1990__205_3_174178,
     author = {A.T. Huckleberry and M. Sauer},
     title = {On the order of the automorphism group of a surface of general type.},
     journal = {Mathematische Zeitschrift},
     pages = {321--330},
     publisher = {mathdoc},
     volume = {205},
     number = {3},
     year = {1990},
     zbl = {0718.32022},
     url = {http://geodesic.mathdoc.fr/item/MZ_1990__205_3_174178/}
}