@book{102696, author = {James Bergquist}, title = {Doppler Free Spectroscopy, ed. by R.G. Hulet and F.B. Dunning}, year = {1996}, number = {29}, month = {1996-01-01}, publisher = { Academic Press , St. Louis, MO}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105141}, language = {en}, }