1. Reproductibility of helium-neon laser wavelengths at 633 nm;Mielenz;Appl. Opt.,1968
2. Frequency stabilization of internal-mirror helium-neon lasers;Balhorn;Appl. Opt.,1972
3. Stabilization method of an infrared two-wavelength laser;Matsumoto;Appl. Phys.,1981
4. Catalogue;Hewlett Packard Inc.,1979
5. Wavelength calibration of commercial wavelength-stabilized lasers and their stability;Iwasaki;Oyobuturi,1980