Adapting the NFR Framework to Aspect-Oriented Requirements Engineering. - Geórgia Maria C. de Sousa; Ismênia G. L. da Silva; Jaelson Brelaz de Castro (SBES, 2003)

Towards a Goal-Oriented Requirements Methodology Based on the Separation of Concerns Principle. - Geórgia Maria C. de Sousa; Jaelson Castro (WER, 2003)

Improving the Separation of Non-Functional Concerns in Requirements Artifacts. - Geórgia Maria C. de Sousa; Jaelson Castro (RE, 2004)

Using NFR to improve separation of concerns in requirements. - Geórgia Maria C. de Sousa; Jaelson Castro (CIbSE, 2005)