TY  - RPRT
TI  - A forward model and conjugate gradient inversion technique for low-frequency ultrasonic imaging.
AU  - Koen W A van Dongen
AU  - William M D Wright
PY  - 2006
DO  - 10.1121/1.2336752
UR  - https://pubmed.ncbi.nlm.nih.gov/17069306/
ID  - 17069306
ER  -