Santos, Ismayle, Rossana M. C. Castro Andrade, and Pedro A. Santos Neto. " How to Describe SPL Variabilities in Textual Use Cases: A Systematic Mapping Study." Proceedings of the 8th Brazilian Symposium on Software Components, Architectures, and Reuse, Maceió/AL, 2014. SBC, 2014, pp.64-73.