MISHEW, J.; KHRISTOV, E. ON AN APPLICATION OF THE OPERATORS OF CRUMM-ICAEIN TO THE DECOMPOSITION IN PRODUCTS OF THE SOLUTIONS OF TWO EQUATIONS OF SCHRODINGER WITH EQUAL SPECTRA. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 82, n. 2, p. 219–247, 1991. Disponível em: https://stipendii.uni-sofia.bg/index.php/fmi/article/view/545. Acesso em: 5 dec. 2024.