@misc{1157526, author = {M Misakian}, title = {Calibration of aspirator-type ion counters and measurement of unipolar charge densities:}, year = {1986}, month = {1986-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.TN.1223}, language = {en}, }