@misc{1166791, author = {C A Douglas}, title = {Potentiometer for measurement of small photoelectric currents:}, year = {1959}, month = {1959-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.RPT.6422}, language = {en}, }