TY  - RPRT
TI  - Comment on "physical limits on electronic nonlinear molecular susceptibilities".
AU  - Benoît Champagne
AU  - Bernard Kirtman
PY  - 2005
DO  - 10.1103/physrevlett.95.109401
UR  - https://pubmed.ncbi.nlm.nih.gov/16196977/
ID  - 16196977
ER  -