The Fourier Transform and its Applications - EE 261 lecture notes, Brad Osgood, 400p
https://see.stanford.edu/materials/lsoftaee261/book-fall-07.pdfProjection-slice theorem (Radon transform inverse)
https://en.wikipedia.org/wiki/Projection-slice_theoremTomographic reconstruction
https://en.wikipedia.org/wiki/Tomographic_reconstruction