TY  - RPRT
TI  - Light-diffracted intensities from very deep gratings.
AU  - M Nieto-Vesperinas
AU  - JM Soto-Crespo
PY  - 1988
DO  - 10.1103/physrevb.38.7250
UR  - https://pubmed.ncbi.nlm.nih.gov/9945447/
ID  - 9945447
ER  -