PACS:42.30.Kq DOI:10.1070/PU1969v011n06ABEH003781 URL: https://ufn.ru/en/articles/1969/6/g/ Citation: Shestov N S, Fedorova E O, Zakharenkov V F, Stavitskaya N A "Measurement of Fourier spectra of two-dimensional functions" Sov. Phys. Usp.11 904–915 (1969)