Document: An Interactive, Online Solution to Four Documentation Problems. - T. R. Girill; Clement H. Luk (Commun. ACM, 1983)

The impact of usage monitoring on the evolution of an online-documentation system: a case study. - T. R. Girill; Clement H. Luk; Sally Norton (IEEE Trans. Syst. Man Cybern., 1988)

Hierarchical Search Support for Hypertext On-Line Documentation. - T. R. Girill; Clement H. Luk (Int. J. Man Mach. Stud., 1992)

Maintenance Simulation: Software Issues. - Clement H. Luk; Morris A. Jette (EUROSIM, 1995)