1. M. Moshinsky and C. Quesne: in Proceedings of the 15th Solvay Conference in Physics, 1970, Gordon & Breach, New York, 1974. M. Moshinsky and C. Quesne: J. Math. Phys. 12 (1971) 1772. C. Quesne and M. Moshinsky: J. Math. Phys. 12 (1971) 1780. M. Moshinsky: SIAM J. Appl. Math. 25 (1973) 193.
2. K.B. Wolf: Integral Transforms in Science and Engineering. Plenum Publ. Corp., New York, 1979.
3. H.M. Ozaktas, Z. Zalevsky, and M. Alper Kutay: The Fractional Fourier Transform. John Wiley, Chichester, 2000.
4. K.B. Wolf: J. Math. Phys. 15 (1974) 1295.
5. V. Namias: J. Inst. Math. Appl. 25 (1980) 241.