@article{ETNA_2006__24__a8,
     author = {Cotfas, Nicolae},
     title = {Systems of orthogonal polynomials defined by hypergeometric type equations},
     journal = {Electronic transactions on numerical analysis},
     pages = {45--54},
     publisher = {mathdoc},
     volume = {24},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2006__24__a8/}
}