1.
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. [Internet]. 1991 Dec. 12 [cited 2024 Dec. 5];82(2):219-47. Available from: https://ftl5.uni-sofia.bg/index.php/fmi/article/view/545