OCL Tools Report based on the IDE4OCL Feature Model. - Joanna Dobroslawa Chimiak-Opoka; Birgit Demuth; Andreas Awenius; Dan Chiorean; Sebastien Gabel; Lars Hamann; Edward D. Willink (Electron. Commun. Eur. Assoc. Softw. Sci. Technol., 2011)