Elena Paslaru Bontas Simperl Igor O. Popov Tobias Bürger ONTOCOM Revisited: Towards Accurate Cost Predictions for Ontology Development Projects. 248-262 2009 ESWC http://dx.doi.org/10.1007/978-3-642-02121-3_21 conf/esws/2009 db/conf/esws/eswc2009.html#SimperlPB09