Some Problems Related to Keys and the Boyce-Codd Normal Form. - Vu Duc Thi; Nguyen Hoang Son (Acta Cybern., 2004)

Some Results Related to Dense Families of Database Relations. - Vu Duc Thi; Nguyen Hoang Son (Acta Cybern., 2005)

On Armstrong Relations for Strong Dependencies. - Vu Duc Thi; Nguyen Hoang Son (Acta Cybern., 2006)

Recommendation based on Emotional Preference. - Nguyen Hoang Son; Masaaki Goto; Yu Takahata; Akihiko Ohsuga; Tetsuo Tanaka; Kazunori Matsumoto (LifeTech, 2020)

Independent sets of closure operations. - Nguyen Hoang Son (CoRR, 2020)