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@article{CM_1985__55_1_89_0, author = {Hesselink, Wim H.}, title = {A classification of the nilpotent triangular matrices}, journal = {Compositio Mathematica}, pages = {89--133}, publisher = {Martinus Nijhoff Publishers}, volume = {55}, number = {1}, year = {1985}, mrnumber = {791648}, zbl = {0579.15011}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1985__55_1_89_0/} }
Hesselink, Wim H. A classification of the nilpotent triangular matrices. Compositio Mathematica, Tome 55 (1985) no. 1, pp. 89-133. http://geodesic.mathdoc.fr/item/CM_1985__55_1_89_0/