@article{7548, author = {D. Jennings and C. Pollock and F. Petersen and R. Drullinger and K. Evenson and J. Wells and John Hall and H. Layer}, title = {Direct frequency measurement of the I2-stabilized He-Ne 473-THz (633-nm) laser}, year = {1983}, journal = {Optics Letters}, volume = {8}, pages = {136}, month = {Jan-01-1983}, issn = {0146-9592}, doi = {10.1364/OL.8.000136}, }