The following publications are possibly variants of this publication:
- Merging ontologies requires interlocking institutional worldsRobert M. Colomb, Mohammad Nazir Ahmad. ao, 2(1):1-12, 2007. [doi]
- A perdurant ontology for interoperating information systems based on interlocking institutional worldsRobert M. Colomb, Mohammad Nazir Ahmad. ao, 5(1):47-77, 2010. [doi]
- A UML profile for perdurant ontology of domain interlocking Institutional WorldsMohammad Nazir Ahmad, Robert M. Colomb, Shazia W. Sadiq. ijiem, 6(3):213-232, 2010. [doi]