Andrew Burton-Jones Veda C. Storey Vijayan Sugumaran Punit Ahluwalia A semiotic metrics suite for assessing the quality of ontologies. 84-102 2005 55 Data Knowl. Eng. 1 http://dx.doi.org/10.1016/j.datak.2004.11.010 db/journals/dke/dke55.html#Burton-JonesSSA05