1. Amaldi, E.: The Production and Slowing Down of Neutrons. In: Handbuch der Physik, Bd. XXXVIII/2, p. 1, especially § 31–60. Berlin- Göttingen-Heidelberg : Springer 1959.
2. Feld, B. T. : The Neutron. In: Experimental Nuclear Physics, vol. II, p. 209, New York : John Wiley & Sons 1953, especially chap. 3: Sources and Detectors; Neutron Spectroscopy.
3. Marion, J. B., and J. L. Fowler: Fast Neutron Physics, part I: Techniques. New York: Interscience Publishers 1960, especially Sec. I: Neutron Sources.
4. Wlassow, N. A.: Neutronen. Köln : Hoffmann 1959, especially chap. II : Neutronenquellen.
5. Whaling, W.: Handbuch der Physik Bd. XXXIV, p. 193. Berlin- Göttingen-Heidelberg : Springer 1958 (Slowing-Down Power of Target Substances).