1. Adams, W. C., Bernauer, E. M.: The effect of selected pace variations on the oxygen requirement of running a 4?37 mile. Res. Q. Am. Assoc. Health Phys. Educ. 39, 837?846 (1968)
2. åstrand, P. O., Saltin, B.: Maximal oxygen uptake and heart rate in various types of muscular activity. J. Appl. Physiol. 16, 977?981 (1961)
3. Bransford, D. R., Howley, E. T.: Oxygen cost of running in trained and untrained men and women. Med. Sci. Sports 9, 41?44 (1977)
4. Bresnaham, G. T., Tuttle, W. W., Cretzmeyer, F. X.: Track and field athletes. (6th ed.). St. Louis: Mosby 1964
5. Christensen, E. H.: Steady-state, O2-deficit and O2-debt at severe work. Arbeitsphysiologie 14, 251?254 (1950)