@misc{indiciaea9ed5039480c, title = {A simplified recording bubble flow meter.}, author = {W G HAMMOND and C HYMAN and T E NELSON}, year = {1950}, doi = {10.1126/science.112.2912.465}, url = {https://pubmed.ncbi.nlm.nih.gov/14781816/}, note = {Source identifier: 14781816} }