TY  - RPRT
TI  - Non-rigid image registration: theory and practice.
AU  - W R Crum
AU  - T Hartkens
AU  - D L G Hill
PY  - 2004
DO  - 10.1259/bjr/25329214
UR  - https://pubmed.ncbi.nlm.nih.gov/15677356/
ID  - 15677356
ER  -