Automated reusability quality analysis of OO legacy software. - Letha H. Etzkorn; William E. Hughes Jr.; Carl G. Davis (Inf. Softw. Technol., 2001)

A semantic entropy metric. - Letha H. Etzkorn; Sampson Gholston; William E. Hughes Jr. (J. Softw. Maintenance Res. Pract., 2002)

Cohesion Metric for Object-Oriented Systems Based on Semantic Closeness from Disambiguity. - Glenn W. Cox; Letha H. Etzkorn; William E. Hughes Jr. (Appl. Artif. Intell., 2006)

A lightweight approach to software validation by comparing UML use cases with internal program documentation selected via call graphs. - Owen Funkhouser; Letha H. Etzkorn; William E. Hughes Jr. (Softw. Qual. J., 2008)

Predicting Computer Science Ph.D. Completion: A Case Study. - Glenn W. Cox; William E. Hughes Jr.; Letha H. Etzkorn; Mary Ellen Weisskopf (IEEE Trans. Educ., 2009)