An object-oriented maintenance-oriented model for software. - K. G. Heisler; W. T. Tsai; P. A. Powell (COMPCON, 1989)

Software representation to support change. - K. G. Heisler; P. E. Johnson; Wei-Tek Tsai; Y. Kasho; J. R. Snyder (TAI, 1990)

A model for assembly program maintenance. - S. Chen; K. G. Heisler; Wei-Tek Tsai; X. Chen; E. Leung (J. Softw. Maintenance Res. Pract., 1990)

A reverse engineering model for C programs. - K. G. Heisler; Y. Kasho; Wei-Tek Tsai (Inf. Sci., 1993)