EHIMWENMA, Kennedy E.; WANG, Junfeng; ZHENG, Ze; ZHOU, Hongyu. A symbolic-arithmetic for teaching double-black node removal in red-black trees. Educational Dimension, Kryvyi Rih, Ukraine, v. 7, p. 112–129, 2022. DOI: 10.31812/educdim.7629. Disponível em: https://acnsci.org/journal/index.php/ed/article/view/530.. Acesso em: 16 apr. 2026.