1. Least-squares fitting of two 3-d point sets;Arun;IEEE Transactions on Pattern Analysis and Machine Intelligence,1987
2. On symmetry detection;Atallah;IEEE Transactions on Computers,1985
3. Bilateral symmetry detection via symmetry-growing;Cho,2009
4. Detecting building alignments for generalisation purposes;Christophe,2002
5. Damen, J., van Kreveld, M., Spaan, B., 2008. High quality building generalization by extending the morphological operators. In: Proc. 11th ICA Workshop on Generalisation and Multiple Representation. (accessed 25.08.12).