TY  - RPRT
TI  - The adding of visual information to previously recorded video-tapes: a functioning system.
AU  - J D Armstrong
AU  - R C Worsey
PY  - 1972
DO  - 10.1080/14640747208400293
UR  - https://pubmed.ncbi.nlm.nih.gov/5049939/
ID  - 5049939
ER  -