TY  - RPRT
TI  - General considerations on optical second-harmonic generation from surfaces and interfaces.
AU  - P Guyot-Sionnest
AU  - W Chen
AU  - YR Shen
PY  - 1986
DO  - 10.1103/physrevb.33.8254
UR  - https://pubmed.ncbi.nlm.nih.gov/9938219/
ID  - 9938219
ER  -