@InCollection{Conrad:2001:inSADDI, author = "Stefan Conrad and Klaus Turowski", title = "Temporal {OCL}: Meeting Specification Demands for Business Components", booktitle = "Unified Modeling Language: Systems Analysis, Design and Development Issues", publisher = "Idea Publishing Group", year = "2001", editor = "Keng Siau and Terry Halpin", chapter = "10", pages = "151--166", isbn = "i-930708-05-X", }