www.ormfoundation.org. ORM Foundation site.
www.orm.net. Terry Halpin’s ORM site.
www.erikproper.eu/publications/. Erik Proper’s publications site.
www.inconcept.com/JCM/index.html. InConcept’s Journal of Conceptual Modeling.
www.ormcentral.com. John Miller’s ORM site: includes COM API details for Visio ORM.
www.pna-group.com. PNA Group: Dutch consultancy for fact-oriented modeling.
www.starlab.vub.ac.be/website/. STARLab group at Free University of Brussels.
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