On Fuzzy Ideals in BCH-Algebras. - Feng-xiao Wang (ICFIE, 2007)

On Rough Ideals and Rough Fuzzy Ideals of BCI-Algebras. - Lu Chen; Feng-xiao Wang (FSKD (5), 2008)

On (Alpha, Beta) Fuzzy Subalgebras of BCH-Algebras. - Feng-xiao Wang; Lu Chen (FSKD (3), 2008)