TY  - RPRT
TI  - A low-wave-vector expansion for reflectivity.
AU  - BL Carvalho
AU  - SH Chen
PY  - 1993
DO  - 10.1103/physreve.47.743
UR  - https://pubmed.ncbi.nlm.nih.gov/9960057/
ID  - 9960057
ER  -