Y. Kim, S. Lee, M. Dollmann, and M. Geierhos, “Improving Classifiers for Semantic Annotation of Software Requirements with Elaborate Syntactic Structure,” International Journal of Advanced Science and Technology, vol. 112, pp. 123–136, 2018.

T. Schattkowsky, T. Xie, and W. Müller, “A UML Frontend for IP-XACT-based IP Management,”10.1109/DATE.2009.5090664__presented at the Design, Automation &; Test in Europe Conference &; Exhibition, 2009, doi:10.1109/DATE.2009.5090664 .