@article {IOPORT.02138559,
    author       = {Zhou, Chan and Xie, Huimin},
    title        = {Exact distribution of the occurrence number for $K$-tuples over an alphabet of non-equal probability letters.},
    year         = {2004},
    journal      = {Annals of Combinatorics},
    volume       = {8},
    number       = {4},
    issn         = {0218-0006},
    pages        = {499-506},
    publisher    = {Birkh\"auser Verlag (Springer), Basel},
    doi          = {10.1007/s00026-004-0236-0},
    abstract     = {Summary: A nucleotide sequence can be considered as a realization of the non-equal-probability independently and identically distributed (niid) model. We derive the exact distribution of the occurrence number for each $K$-tuple with respect to the niid model by means of the Goulden-Jackson cluster method. An application of the probability function to get exact expectation curves is presented, accompanied by comparison between the exact approach and the approximate solution.},
    identifier   = {02138559},
}