@article{MZ_1953__58_169329,
     author = {J.S. Clowes and K.A. Hirsch},
     title = {Simple {Groups} of {Infinite} {Matrices.}},
     journal = {Mathematische Zeitschrift},
     pages = {1--3},
     year = {1953},
     volume = {58},
     zbl = {0050.25401},
     url = {http://geodesic.mathdoc.fr/item/MZ_1953__58_169329/}
}