The symmetrical H q -semiclassical orthogonal polynomials of class one. Ghressi, Abdallah; Khériji, Lotfi — 2009 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
Orthogonal q -polynomials related to perturbed linear form. Ghressi, Abdallah; Khériji, Lotfi — 2007 Applied Mathematics E-Notes [electronic only]
A survey on D-semiclassical orthogonal polynomials. Ghressi, Abdallah; Kheriji, Lotfi — 2010 Applied Mathematics E-Notes [electronic only]