TY  - RPRT
TI  - A hand-held electronically switched array for rapid ultrasonic scanning.
AU  - T A Whittingham
PY  - 1976
DO  - 10.1016/0041-624x(76)90069-x
UR  - https://pubmed.ncbi.nlm.nih.gov/1251551/
ID  - 1251551
ER  -