TY  - RPRT
TI  - Implementation of three-dimensional image reconstruction for multi-ring positron tomographs.
AU  - M Defrise
AU  - D Townsend
AU  - A Geissbuhler
PY  - 1990
DO  - 10.1088/0031-9155/35/10/002
UR  - https://pubmed.ncbi.nlm.nih.gov/2243841/
ID  - 2243841
ER  -