@article{ELA_2011__22__a13,
     author = {Shur, Walter},
     title = {A simple closed form for triangular matrix powers},
     journal = {The electronic journal of linear algebra},
     pages = {1000--1003},
     publisher = {mathdoc},
     volume = {22},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2011__22__a13/}
}