@article{762946, author = {K Evenson and Gordon Day and J. Wells and L Mullen}, title = {Extension of Absolute Frequency Measurements to the CW He-Ne Laser at 88 THz (3.39 υm)}, year = {1971}, number = {20}, month = {1971-02-01 00:02:00}, publisher = {Applied Physics Letters}, language = {en}, }