Alexander M. Bronstein Michael M. Bronstein Alfred M. Bruckstein Ron Kimmel Analysis of Two-Dimensional Non-Rigid Shapes. 67-88 2008 78 International Journal of Computer Vision 1 http://dx.doi.org/10.1007/s11263-007-0078-4 db/journals/ijcv/ijcv78.html#BronsteinBBK08