@article {IOPORT.05187118,
    author       = {Wright, Stephen E.},
    title        = {Lengths of paths and cycles in zero-divisor graphs and digraphs of semigroups.},
    year         = {2007},
    journal      = {Communications in Algebra},
    volume       = {35},
    number       = {6},
    issn         = {0092-7872},
    pages        = {1987-1991},
    publisher    = {Taylor \& Francis, Philadelphia, PA},
    doi          = {10.1080/00927870701247146},
    abstract     = {Summary: Short, elementary proofs of the optimal bounds for various path and cycle lengths are given for the zero-divisor graphs and digraphs of semigroups.},
    identifier   = {05187118},
}