A I Aptekarev, “Strong asymptotics of multiply orthogonal polynomials for Nikishin systems”, Sb. Math., 190, no. 5, 1999, 631
Imed Lamiri, Jihen Weslati, “Asymptotic relations involving 𝑑-orthogonal polynomials”, Georgian Mathematical Journal, 28, no. 3, 2021, 383
Neila Ben Romdhane, Mohamed Gaied, “A generalization of the symmetric classical polynomials: Hermite and Gegenbauer polynomials”, Integral Transforms and Special Functions, 27, no. 3, 2016, 227
N. Ben Romdhane, “d-Orthogonal Faber polynomials”, Integral Transforms and Special Functions, 18, no. 9, 2007, 663
Boukhemis Ammar, Zerouki Ebtissem, “Classical2-orthogonal polynomials and differential equations”, International Journal of Mathematics and Mathematical Sciences, 2006, 2006, 1
Y. Ben Cheikh, I. Lamiri, A. Ouni, “d-orthogonality of Littleq-Laguerre type polynomials”, Journal of Computational and Applied Mathematics, 236, no. 1, 2011, 74
R. É. Akhmedov, “Asymptotic behavior of semiclassical jointly-orthogonal polynomials of Bessel-Laguerre type”, Math Notes, 83, no. 3-4, 2008, 420
Andrei Martínez-Finkelshtein, Evguenii A Rakhmanov, Sergey P Suetin, “A differential equation for Hermite-Padé polynomials”, Russ. Math. Surv., 68, no. 1, 2013, 183
Klaas Deschout, Arno B. J. Kuijlaars, Notions of Positivity and the Geometry of Polynomials, 2011, 115
Руслан Эльдарович Ахмедов, Ruslan Eldarovich Akhmedov, “Об асимптотическом поведении полуклассических полиномов совместной ортогональности типа Бесселя”, Матем. заметки, 84, no. 4, 2008, 483