1. Telea, A.: Real-time 2D skeletonization using CUDA (2019). http://www.staff.science.uu.nl/~telea001/Shapes/CUDASkel
2. Lecture Notes in Computer Science;R Bade,2005
3. Belousov, B.: Difference between two rotation matrices (2016). http://www.boris-belousov.net/2016/12/01/quat-dist
4. Bian, S., Zheng, A., Chaudhry, E., You, L., Zhang, J.J.: Automatic generation of dynamic skin deformation for animated characters. Symmetry 10(4), 89 (2018)
5. Blum, H.: A transformation for extracting new descriptors of shape. In: Models for the Perception of Speech and Visual Form, pp. 362–381. MIT Press (1967)