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2. Requirements for energy;ARC,1980
3. International systems of units in physiology;Assendelf;Pfluegers Arch., Eur. J. Physiol.,1973
4. Report of sub-committee on constants and factors;Brouwer,1965
5. Effect of supplies of energy and protein on the protein metabolism of growing animals;Brüggemann;Uebers. Tierernaehr.,1984