Soft Systems in Requirements Engineering: A Case Study. - Alejandra Yepez Lopez; Nan Niu (SEKE, 2010)

Multiple criteria decision support for software reuse: A case study. - Alejandra Yepez Lopez; Nan Niu (IRI, 2011)

Using soft systems methodology to improve requirements practices: an exploratory case study. - Nan Niu; Alejandra Yepez Lopez; Jing-Ru C. Cheng (IET Softw., 2011)