TY  - RPRT
TI  - On drinkometers: problems and an inexpensive photocell solution.
AU  - B Martonyi
AU  - E S Valenstein
PY  - 1971
DO  - 10.1016/0031-9384(71)90064-3
UR  - https://pubmed.ncbi.nlm.nih.gov/5134032/
ID  - 5134032
ER  -