Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{EXMA_1994__3_2_225045, author = {Ryba, Alexander J.E. and Wilson, Robert A.}, title = {Matrix generators for the {Harada-Norton} group.}, journal = {Experimental mathematics}, pages = {137--145}, publisher = {mathdoc}, volume = {3}, number = {2}, year = {1994}, zbl = {0831.20016}, language = {en}, url = {http://geodesic.mathdoc.fr/item/EXMA_1994__3_2_225045/} }
Ryba, Alexander J.E.; Wilson, Robert A. Matrix generators for the Harada-Norton group.. Experimental mathematics, Tome 3 (1994) no. 2, pp. 137-145. http://geodesic.mathdoc.fr/item/EXMA_1994__3_2_225045/