@InCollection{Rumpe:2002:inOCL, author = "Bernhard Rumpe", title = "{$\ll$Java$\gg$OCL} Based on New Presentation of the {OCL}-Syntax", booktitle = "Object Modeling with the OCL: The Rationale behind the Object Constraint Language", publisher = "Springer", year = "2002", editor = "Tony Clark and Jos Warmer", pages = "189--212", isbn = "3-540-43169-1", }