A Case of Industrial vs. Open-source OCL: Not So Different After All. - Josh G. M. Mengerink; Jeroen Noten; Ramon R. H. Schiffelers; Mark G. J. van den Brand; Alexander Serebrenik (MoDELS (Satellite Events), 2017)

A data set of OCL expressions on GitHub. - Jeroen Noten; Josh Mengerink; Alexander Serebrenik (MSR, 2017)

Empowering OCL research: a large-scale corpus of open-source data from GitHub. - Josh G. M. Mengerink; Jeroen Noten; Alexander Serebrenik (Empir. Softw. Eng., 2019)