AUTOMORPHISMS OF ALGEBRAS AND BOCHNER‘S PROPERTY FOR DISCRETE VECTOR ORTHOGONAL POLYNOMIALS. Ann. Sofia Univ. Fac. Math. and Inf. [Internet]. 2017 Dec. 12 [cited 2025 Dec. 16];104:23-38. Available from: https://annual.uni-sofia.bg/index.php/fmi/article/view/35