@article{10_4064_aa110_2_4,
     author = {P\"ar Kurlberg},
     title = {On the order of unimodular matrices modulo integers},
     journal = {Acta Arithmetica},
     pages = {141--151},
     publisher = {mathdoc},
     volume = {110},
     number = {2},
     year = {2003},
     doi = {10.4064/aa110-2-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa110-2-4/}
}