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2. On the determination of the phase of Fourier integral I;Akutowicz;Trans. Amer. Math. Soc.,1956
3. On the determination of the phase of Fourier integral II;Akutowicz;Proc. Amer. Math. Soc.,1957
4. Theory of Hp Spaces;Duren,1970
5. Phase Retrieval and Zero Crossings (Mathematical Methods in Image Reconstruction);Hurt,1989