@article{784861, author = {L Pan and K Taylor and Charles Clark}, title = {Convergence of Rayleigh-Schrödinger Perturbation Theory in Calculations of Multiphoton Processes,}, year = {1991}, number = {123}, month = {1991-01-01 00:01:00}, publisher = {Radiation Effects and Defects in Solids}, language = {en}, }