Journal of Radiosurgery
1999; 2:215-221.
Hybrid formulation of the model-based non-rigid registration problem to improve accuracy and robustness.
Med Image Comput Comput Assist Interv
http://www.ncbi.nlm.nih.gov/pubmed/16685972
Med Image Comput Comput Assist
Interv.
2007; 10(pt 2):161-8.