@misc{1163296, author = {Paul A Mantek and Sidney B Geller}, title = {Standard Reference Materials ::Calibration of NBS secondary standard magnetic tape (computer amplitude reference) using the reference tape amplitude measurement Process A/}, year = {1969}, month = {1969-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.SP.260-18}, language = {en}, }