Mishew, J. and Khristov, E. (1991) “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, 82(2), pp. 219–247. Available at: https://ftl5.uni-sofia.bg/index.php/fmi/article/view/545 (Accessed: 5 December 2024).