TY  - RPRT
TI  - An easily constructed event marker.
AU  - D H Strumeyer
AU  - B R Fisher
PY  - 1971
DO  - 10.1016/0003-2697(71)90202-8
UR  - https://pubmed.ncbi.nlm.nih.gov/5578538/
ID  - 5578538
ER  -