S. Abiteboul, und O. Duschka. PODS '98: Proceedings of the seventeenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems, Seite 254--263. New York, NY, USA, ACM, (1998)
D. Akehurst, und B. Bordbar. International Conference on the Unified Modeling Language (UML), 2185/2001, Seite 91-103. Toronto, (Oktober 2001)Dated; refers to OCL 1. Most suggestions have been implemented in OCL 2..
Z. Al Bawab, G. Mills, und J. Crespo. Proceedings of the 18th ACM SIGKDD international conference on Knowledge discovery and data mining, Seite 397--405. New York, NY, USA, ACM, (2012)
A. Alashqur, S. Su, und H. Lam. VLDB '89: International Conference on Very Large Databases, Seite 433--442. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (1989)
A. Alashqur, S. Su, und H. Lam. VLDB '89: Proceedings of the 15th international conference on Very large data bases, Seite 433--442. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (1989)
R. Angles, und C. Gutierrez. The Semantic Web: Research and Applications, Volume 3532 von Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2005)