1. Adachi, T., and T. Okuyama: A study of the quantitative analysis on the mineral contents of the bone by X-rays. Bull. Tokyo med. dent. Univ. 13, 349–367 (1966).
2. Adams, P. H., G. T. Davies, J. Kilpatrick, and P. Sweetman: Barnett-Nordin-index: Observer error study. Symposium Ossium, London 1968 (im Druck).
3. Albright, F., and E. C. Keifenstein: The parathyroid glands and metabolic bone diseases. Baltimore: Williams & Wilkins Co. 1948.
4. Anderson, J. B., J. Shimmins, and D. A. Smith: A new technique for the measurement of metacarpal density. Brit. J. Radiol. 39, 443–450 (1966).
5. Anderson, W. D. A.: Renal lesion in hyperparathyroidism. Endocrinology 24, 272–378 (1939).