TY  - RPRT
TI  - Diffraction by a circular aperture as a model for three-dimensional optical microscopy.
AU  - S F Gibson
AU  - F Lanni
PY  - 1989
DO  - 10.1364/josaa.6.001357
UR  - https://pubmed.ncbi.nlm.nih.gov/2795290/
ID  - 2795290
ER  -