TY  - RPRT
TI  - A simple timing waveform system for use with tape recorders and chart recorders.
AU  - I R Perry
AU  - J Endresen
PY  - 1978
DO  - 10.1007/bf02442667
UR  - https://pubmed.ncbi.nlm.nih.gov/308595/
ID  - 308595
ER  -