Посилання:Radical theory in BCH-algebras / W.A.Dudek, Young Bae Jun // Algebra and Discrete Mathematics. — 2002. — Vol. 1, № 1. — С. 69–78. — Бібліогр.: 10 назв. — англ.
Підтримка:One of the authors (Young Bae Jun) would like
to express his thanks to the KOSEF and PAS for providing the necessary
funds for his trip to the Technical University of Wroclaw, Poland
exploring the issues of this paper.