Klуmуk A.U. (1966) “Expansion of a direct product of irreducible representations of semisimple Lee algebras into irreducible representations ”,
Ukrains’kyi Matematychnyi Zhurnal, 18(5), pp. 19–22. Available at:
https://umj.imath.kiev.ua/index.php/umj/article/view/8437 (Accessed: 10 April 2025).