@article{144971, author = {Thomas O'Brian and J Kim and G Lan and T McIlrath and Thomas Lucatorto}, title = {Verification of the Ponderomotive Approximation for the ac Stark Shift in Xe Rydberg Levels,}, year = {1994}, number = {49}, month = {1994-01-01}, publisher = {Physical Review A (Atomic, Molecular and Optical Physics)}, language = {en}, }