1. Abramson, D.I.: Circulation in the extremities, p. 408. New York: Academic Press 1967
2. Abramson, D.I., Fierst, S.M.: Resting peripheral blood flow in the hyperthyroid state. Arch. intern. Med. 69, 409?416 (1942)
3. Alexander, K., Teusen, R., Mitzkat, H.J.: Vergleichende Messungen der Extremit�tendurchblutung bei Diabetikern und Stoffwechselgesunden. Klin. Wschr. 46, 234?238 (1968)
4. Benedict, F.G., Joslin, E.P.: A study of metabolism in severe diabetes. Washington: Carnegie Institute 1912
5. Benzinger, T.H., Taylor, G.W.: Temperature, its measurement and control in science and industry, ch. 10. (Ed. Hertzfeld, C.M.). New York: Reinhold Publishing Corporation 1963