@misc {MATHEDUC.06096382,
    title        = {Nilpotent matrices. (Matrices nilpotentes.)},
    howpublished = {Rev. Educ. Mat. 27, No. 1, 29-30 (2012).},
    year         = {2012},
    msc2010      = {H60xx},
    identifier   = {2012f.00784},
}