SMIRNOV, Yuri F.; TURBINER, Alexander. 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://ojst.is.cvut.cz/ojs/index.php/ap/article/view/1872.. Acesso em: 13 may. 2025.