SMIRNOV, Y. F.; TURBINER, A. gln+1 ALGEBRA OF MATRIX DIFFERENTIAL OPERATORS AND MATRIX QUASI-EXACTLY-SOLVABLE PROBLEMS. Acta Polytechnica, [S. l.], v. 53, n. 5, p. 462–469, 2013. DOI: 10.14311/AP.2013.53.0462. Disponível em: https://ojs.cvut.cz/ojs/index.php/ap/article/view/1872. Acesso em: 3 may. 2024.