@article{01275555, title = {On 2-orthogonal polynomials of Laguerre type.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {22}, year = {1999}, pages = {29-48}, doi = {10.1155/S0161171299220297}, zbl = {0927.33006}, language = {en}, url = {http://dml.mathdoc.fr/item/01275555} }
Douak, Khalfa. On 2-orthogonal polynomials of Laguerre type.. International Journal of Mathematics and Mathematical Sciences, Tome 22 (1999) pp. 29-48. doi : 10.1155/S0161171299220297. http://gdmltest.u-ga.fr/item/01275555/