TY  - RPRT
TI  - Second- and third-harmonic generations in compositionally graded films.
AU  - Lei Gao
PY  - 2005
DO  - 10.1103/physreve.71.067601
UR  - https://pubmed.ncbi.nlm.nih.gov/16089922/
ID  - 16089922
ER  -