Pikhurko О. В.; Zarichnyi М. М. Raise of the functories to the Eilenberg-Moore monad generated by the functor $C_pC_p$. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 9, p. 1289–1291, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8185. Acesso em: 5 dec. 2025.