TY  - RPRT
TI  - Analogue implementation of analytic signal processing for pulse-echo systems.
AU  - P M Gammell
PY  - 1981
DO  - 10.1016/0041-624x(81)90019-6
UR  - https://pubmed.ncbi.nlm.nih.gov/7292778/
ID  - 7292778
ER  -