A case study in repeated maintenance. - Shuanglin Wang; Stephen R. Schach; Gillian Z. Heller (J. Softw. Maintenance Res. Pract., 2001)

Maintainability of the Linux kernel. - Stephen R. Schach; Bo Jin; David R. Wright 002; Gillian Z. Heller; A. Jefferson Offutt (IEE Proc. Softw., 2002)

Determining the Distribution of Maintenance Categories: Survey versus Measurement. - Stephen R. Schach; Bo Jin; Liguo Yu; Gillian Z. Heller; A. Jefferson Offutt (Empir. Softw. Eng., 2003)

Quality Impacts of Clandestine Common Coupling. - Stephen R. Schach; Bo Jin; David R. Wright 002; Gillian Z. Heller; A. Jefferson Offutt (Softw. Qual. J., 2003)

Open-Source Change Logs. - Kai Chen 010; Stephen R. Schach; Liguo Yu; A. Jefferson Offutt; Gillian Z. Heller (Empir. Softw. Eng., 2004)

An Empirically-Based Criterion for Determining the Success of an Open-Source Project. - Dror G. Feitelson; Gillian Z. Heller; Stephen R. Schach (ASWEC, 2006)

Maintainability of the kernels of open-source operating systems: A comparison of Linux with FreeBSD, NetBSD, and OpenBSD. - Liguo Yu; Stephen R. Schach; Kai Chen 010; Gillian Z. Heller; A. Jefferson Offutt (J. Syst. Softw., 2006)

Impact of release intervals on empirical research into software evolution, with application to the maintainability of Linux. - Lawrence G. Thomas; Stephen R. Schach; Gillian Z. Heller; Jeff Offutt (IET Softw., 2009)

Monte Carlo methods in spatio-temporal regression modeling of migration in the EU. - Maurizio Manuguerra; Georgy Sofronov; Massimiliano Tani; Gillian Z. Heller (CIFEr, 2013)

Continuous Ordinal Regression for Analysis of Visual Analogue Scales: The R Package ordinalCont. - Maurizio Manuguerra; Gillian Z. Heller; Jun Ma 019 (J. Stat. Softw., 2020)