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@article{MAN_1984__266_163865, author = {M.S. Raghunathan}, title = {Torsion in {Cocompact} {Lattices} in {Coverings} of {Spin} (2,n).}, journal = {Mathematische Annalen}, pages = {403--420}, publisher = {mathdoc}, volume = {266}, year = {1984}, zbl = {0513.22008}, url = {http://geodesic.mathdoc.fr/item/MAN_1984__266_163865/} }
M.S. Raghunathan. Torsion in Cocompact Lattices in Coverings of Spin (2,n).. Mathematische Annalen, Tome 266 (1984), pp. 403-420. http://geodesic.mathdoc.fr/item/MAN_1984__266_163865/