1. J. A. Campbell, Gas tensions in the tissues, Physiol. Rev. 11:1 (1931).
2. A. Krogh, The number and distribution of capillaries in muscles with calculations of the oxygen pressure head necessary for supplying the tissue, J. Physiol. 52:509 (1919).
3. E Kreuzer, Oxygen supply to tissues: The Krogh modell and its assumptions, Experientia 38:1415(1982).
4. P.W. Davies. and E Brink jr., Microelectrodes for measuring local oxygen tensions in animal tissue, Rev. Scient. Instr. 13: 524(1942).
5. E. Roseman, C.W. Goodwin and W.S. McCulloch, Rapid changes in cerebral oxygen tension induced by altering the oxygenation and circulation of the blood, J. Neurophysiol. 9:33 (1946).