@article{6961, author = {A. Smith and J. Goldsmith and D. Nitz and S. Smith}, title = {Absolute photoionization cross-section measurements of the excited 4D and 5S states of sodium}, year = {1980}, journal = {Physical Review A}, volume = {22}, pages = {577-581}, month = {Jan-08-1980}, issn = {0556-2791}, doi = {10.1103/PhysRevA.22.577}, }