SpringerLink (Online service), Clark, T., & Warmer, J. B. (2002). Object modeling with the OCL: The rationale behind the Object Constraint Language. Springer.
Chicago Style (17th ed.) CitationSpringerLink (Online service), Tony Clark, and Jos B. Warmer. Object Modeling with the OCL: The Rationale Behind the Object Constraint Language. Berlin ; New York: Springer, 2002.
MLA (9th ed.) CitationSpringerLink (Online service), et al. Object Modeling with the OCL: The Rationale Behind the Object Constraint Language. Springer, 2002.
Warning: These citations may not always be 100% accurate.