Codes and Length-Increasing Transitive Binary Relations. - Do Long Van; Kieu Van Hung; Phan Trung Huy (ICTAC, 2005)

Prime Decomposition Problem for Several Kinds of Regular Codes. - Kieu Van Hung; Do Long Van (ICTAC, 2006)

Characterizations for Some Classes of Codes Defined by Binary Relations. - Do Long Van; Kieu Van Hung (Formal Models, Languages and Applications, 2007)