1. Sport- und Schreibtischherz;Reindell;Die ärztl. Fortbildg.,1959
2. Coronary heart disease and physical activity of work;Morris;Lancet,1953
3. Coronary heart disease and physical activity of work;Morris;Lancet,1953
4. Hypokinetic Disease—Diseases Produced by Lack of Exercise;Kraus,1961
5. The influence of physical activity on incidence and prognosis of ischemic heart disease;Brunner,1966