HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES, vol.36, no.6, pp.599-610, 1991 (SCI-Expanded)
A numerical algorithm for computation of gamma frequency factors is given and verified in the ranges of -9.0 less-than-or-equal-to skewness coefficient less-than-or-equal-to 9.0 and 10(-8) less-than-or-equal-to non-exceedance probability less-than-or-equal-to 1 - 10(-8), which are wide enough for all hydrological applications.