1. The effects of violent and prolonged muscular exercise upon the heart;Williams;Trans Am Climatol Assoc,1899
2. The effects of training: a study of the Harvard University crews;Darling;Boston Med Surg J,1899
3. Skidlauf und skidwettlauf: eine medizinische sportstudie;Henschen;Mitt Med Klin Upsala,1899
4. [Roentgenologic investigation of the heart in athletes];Potte;Klin Med (Mosk),1951
5. The heart of the athlete;Wolffe;J Lancet,1957