TY  - RPRT
TI  - Lens coupling efficiency: derivation and application under differing geometrical assumptions.
AU  - T Yu
AU  - J M Boone
PY  - 1997
DO  - 10.1118/1.598055
UR  - https://pubmed.ncbi.nlm.nih.gov/9127309/
ID  - 9127309
ER  -