1. The physical work capacity of workers 50-64 years old;ÅStrand;Acta physiol. scand.,1958a
2. Clinical and physiological studies of manual workers 50 - 64 years old at rest and during work;ÅStrand;Acta med. scand.,1958b
3. Aerobic work capacity in men and women with special reference to age;ÅStrand;Acta physiol. scand.,1960