Jörn Guy Süß Andreas Leicher Susanne Busse OCLPrime - Environment and Language for Model Query, Views and Transformations. 133-153 2004 102 Electr. Notes Theor. Comput. Sci. http://dx.doi.org/10.1016/j.entcs.2003.09.007 db/journals/entcs/entcs102.html#SussLB04