@article{51021, author = {Alan Migdall}, title = {Migdall Responds II: More Correlated Photon Metrology History}, year = {1999}, number = {52}, month = {1999-11-01}, publisher = {Physics Today}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=841390}, language = {en}, }