Henrique Rebêlo, Ricardo Massa Ferreira Lima, Uirá Kulesza, Márcio Ribeiro, Yuanfang Cai, Roberta Coelho, Cláudio Sant'Anna, Alexandre Mota. Quantifying the effects of Aspectual Decompositions on Design by Contract Modularization: a Maintenance Study. International Journal of Software Engineering and Knowledge Engineering, 23(7):913-942, 2013. [doi]