@misc{1168501, author = {Carl W Coblentz}, title = {Progress report on engine air cleaning ::October 1, 1954 to December 31, 1954}, year = {1954}, month = {1954-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.RPT.3872}, language = {en}, }