@article{JRAM_1969__238_183514,
     author = {O.T. O'Meara},
     title = {The automorphisms of the orthogonal groups and their congruence subgroups over arithmetic domains.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {169--206},
     publisher = {mathdoc},
     volume = {238},
     year = {1969},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1969__238_183514/}
}