@misc{indiciae091b1b609167, title = {Accurate, rapid, temperature and liquid-level sensor for cryogenic tanks}, author = {De Witt, R. L. and Stochl, R. J. and Terbeek, H. G.}, year = {1970}, url = {https://ntrs.nasa.gov/citations/19700000608}, note = {Source identifier: 19700000608} }