TY - RPRT TI - Generalized susceptibility approach to transient nonlinear optical processes. AU - AA Villaeys AU - JC Vallet AU - SH Lin PY - 1990 DO - 10.1103/physreva.41.2796 UR - https://pubmed.ncbi.nlm.nih.gov/9903413/ ID - 9903413 ER -