References
- Sievert (1950) Acta Radiol, p. 328.
- Mayneord (1949) Brit. Journ. Rad., p. 185.
- Green, Jennings and Bush (1949) Acta Radiol., 31, p. 273.
- Bossi (1946) Ricerca Scientifica, 16, p. 56.
- Bossi (1946) Acta Pontificiae Academiae Scientiarum, p. 117.
- Sievert (1950) Acta Radiol., p. 328.