SpringerLink (Online service), Clark, T., & Warmer, J. (2002). Object Modeling with the OCL: The Rationale behind the Object Constraint Language (1st ed. 2002.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-45669-4
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Tony Clark, και Jos Warmer. Object Modeling with the OCL: The Rationale Behind the Object Constraint Language. 1st ed. 2002. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2002. https://doi.org/10.1007/3-540-45669-4.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Object Modeling with the OCL: The Rationale Behind the Object Constraint Language. 1st ed. 2002. Springer Berlin Heidelberg : Imprint: Springer, 2002. https://doi.org/10.1007/3-540-45669-4.
