Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
RICHARDS B.,"Electromagnetic diffraction in optical systems, II. Structure of the image field in an aplanatic system",Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences,0080-4630,The Royal Society,1959-12-15,253,1274,358-379,https://cir.nii.ac.jp/crid/1364233269524163456,https://doi.org/10.1098/rspa.1959.0200