@article{PhysRevFocus.26.24, title = {\textit{Landmarks} : The First Laser to Stay On}, author = {Lindley, David}, journal = {Phys. Rev. Focus}, volume = {26}, issue = {}, pages = {24}, numpages = {1}, year = {2010}, month = {Dec}, doi = {10.1103/PhysRevFocus.26.24}, url = {http://link.aps.org/doi/10.1103/PhysRevFocus.26.24}, publisher = {American Physical Society} }