@article{EUG_1989_22_a4,
     author = {Andreas N. Philippou and  George N. Philippou},
     title = {The {Pell} {Sequence} of {Order} {K,} {Multinomial} {Coefficients,} and {Probability}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}},
     pages = {74--84},
     year = {1989},
     volume = {22},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1989_22_a4/}
}