In the journal “Optics and Spectroscopy” the following article is published:
Lyakin D.V., Maksimova L.A., Sdobnov A.Yu., Ryabukho V.P. The Influence of the Numerical Aperture of a Beam Probing an Object on the Determination of the Thickness of a Layered Object in Confocal Microscopy // Optics and Spectroscopy. 2017. V. 123. № 3. P. 487–494.