Projectivity and flatness over the endomorphism ring of a finitely generated module. Caenepeel, S.; Guédénon, T. — 2004 International Journal of Mathematics and Mathematical Sciences
Twistings, crossed coproducts, and Hopf-Galois coextensions. Caenepeel, S.; Wang, Dingguo; Wang, Yanxin — 2003 International Journal of Mathematics and Mathematical Sciences
Coalgebra deformations of bialgebras by Harrison cocycles, copairings of Hopf algebras and double crosscoproducts. Caenepeel, S.; Dăscălescu, S.; Militaru, G.; Panaite, F. — 1997 Bulletin of the Belgian Mathematical Society - Simon Stevin