Endo et al. 1978 Endo, T.; Yabuzaki, T.; Kitano, M.; Sato, T.; Ogawa, T. (1978), "Frequency-locking of a CW dye laser to absorption lines of neon by a Faraday filter", IEEE Journal of Quantum Electronics, QE-14 (12): 977–982, Bibcode:1978IJQE...14..977E, doi:10.1109/JQE.1978.1069734.
Endo et al. 1978 Endo, T.; Yabuzaki, T.; Kitano, M.; Sato, T.; Ogawa, T. (1978), "Frequency-locking of a CW dye laser to absorption lines of neon by a Faraday filter", IEEE Journal of Quantum Electronics, QE-14 (12): 977–982, Bibcode:1978IJQE...14..977E, doi:10.1109/JQE.1978.1069734.