%0 Journal Article %A Cotfas, Nicolae %T Systems of orthogonal polynomials defined by hypergeometric type equations %J Electronic transactions on numerical analysis %D 2006 %P 45-54 %V 24 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2006__24__a8/ %G en %F ETNA_2006__24__a8