Nasse M. J., Woehl J. C., Huant S.: High-resolution mapping of the three-dimensional point spread function in the near-focus region of a confocal microscope. In: Appl. Phys. Lett. 90. Jahrgang, Nr.031106, 2007, S.031106-1–3, doi:10.1063/1.2431764.
Nasse M. J., Woehl J. C.: Realistic modeling of the illumination point spread function in confocal scanning optical microscopy. In: J. Opt. Soc. Am. A. 27. Jahrgang, Nr.2, 2010, S.295–302, doi:10.1364/JOSAA.27.000295.
jstor.org
B. Richards, E. Wolf: Electromagnetic diffraction in optical systems II. Structure of the image field in an aplanatic system. In: Proc. R. Soc. Lond. A. Vol. 253, 1959, S.358–379, JSTOR:100740.