@article{JOLT_1996_6_2_a6,
     author = {E. B. Vinberg},
     title = { On {Invariants} of a {Set} of {Matrices}},
     journal = {Journal of Lie Theory},
     pages = {249--269},
     year = {1996},
     volume = {6},
     number = {2},
     zbl = {0884.14006},
     url = {http://geodesic.mathdoc.fr/item/JOLT_1996_6_2_a6/}
}