@article{publication-7143, author={W{\"u}rsch, Michael and Ghezzi, Giacomo and Hert, Matthias and Reif, Gerald and Gall, Harald C}, doi={10.1007/s00607-012-0204-1}, issn={0010-485X}, journal={Computing}, number=11, pages={857-885}, publisher={Springer}, title={SEON: A pyramid of ontologies for software evolution and its applications}, volume=94, year=2012, }