Detry, JM., Vanbutsele, R., Derwaelbarchy, C., Fesler, R., Luwaert, R., Robert, A., & Brohet, C. (1982). Computer-assisted Exercise Ecg System Based On St Depression, Heart-rate and Bayesian-analysis. Japanese Heart Journal, 23, 597-599. https://hdl.handle.net/2078.5/90418 (Original work published 1982)