@misc{indiciae44e22cbac463, title = {Comment on "physical limits on electronic nonlinear molecular susceptibilities".}, author = {BenoƮt Champagne and Bernard Kirtman}, year = {2005}, doi = {10.1103/physrevlett.95.109401}, url = {https://pubmed.ncbi.nlm.nih.gov/16196977/}, note = {Source identifier: 16196977} }