@article{JRAM_1984__353_152669,
     author = {Manfred Kolster},
     title = {General symbols and presentations of elementary linear groups.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {132--164},
     publisher = {mathdoc},
     volume = {353},
     year = {1984},
     zbl = {0536.18004},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1984__353_152669/}
}