D. Wang, F. Han, and Y. Yang. Spatial Data Mining and Geographical Knowledge Services (ICSDM), 2011 IEEE International Conference on, page 166 -169. (29 2011-july 1 2011)
Z. Tu, X. Chen, A. Yuille, and S. Zhu. Toward Category-Level Object Recognition, volume 4170 of Lecture Notes in Computer Science, page 545-576. Springer, (2006)