1. Maintaining knowledge about temporal intervals;Allen;Commun. ACM,1983
2. D.A. Randell, Z. Cui, A.G. Cohn, A spatial logic based on regions and connection, in: Proceedings of the 3rd International Conference on Principles of Knowledge Representation and Reasoning, KR’92, Cambridge, MA, 25–29 1992, 1992, pp. 165–176.
3. Real-world applications of qualitative reasoning;Iwasaki;IEEE Expert,1997
4. R.W. Focke, L.O. Wabeke, J.P. de Villiers, M.R. Inggs, Implementing interval algebra to schedule mechanically scanned multistatic radars, in: Proceedings of the 14th International Conference on Information Fusion, FUSION 2011, Chicago, Illinois, USA, 5–8 2011, 2011, pp. 1–7. URL http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5977496.
5. Qualitative spatial representation and reasoning: an overview;Cohn;Fundam. Inform.,2001