1. A content-driven reputation system for the Wikipedia;Adler,2007
2. Central Place Studies: A Bibliography of Theory and Applications;Berry,1965
3. Central Places in Southern Germany, Translated by C.W. Baskin;Christaller,1966
4. Cipeluch, B., Jacob, R., Winstanley, A., Mooney, P., 2010. Comparison of the accuracy of OpenStreetMap for Ireland with Google maps and bing maps. In: N.J. Tate and P.F. Fisher (Eds.), Proceedings, Ninth International Symposium on Spatial Accuracy Assessment in Natural Resources and Environmental Sciences, Accuracy 2010, Leicester, UK, July 20–23, pp. 337–340.
5. The Real Blake: A Portrait Biography;Ellis,1970