1. Anderson, C. B., Gray, F. D., Jr.: The circulatory and ventilatory effects of normovolemic polycythemia. Yale J. Biol. Med.35, 233?240 (1962).
2. Asmussen, E., Consolazio, F. C.: The circulation in rest and work on Mount Evans (4300 m). Amer. J. Physiol.132, 555?563 (1941).
3. Barcroft, J.: The respiratory function of blood. Part I. Lessons from high altitudes. Cambridge: Cambridge University Press 1925.
4. Barker, J. N.: Role of hemoglobin affinity and concentration in determining hypoxia tolerance of mammals during infancy, hypoxia, hyperoxia and irradiation. Amer. J. Physiol.189, 281?289 (1957).
5. Bartels, H.: Oxygen capacity and affinity in mammals during high altitude acclimatization. In: Exercise at altitude, ed. R. Margaria, pp. 159?162. Amsterdam: Excerpta Medica Foundation 1967.