Delbeke, F. (August 1996). "Doping in Cyclism: Results of Unannounced Controls in Flanders (1987-1994)". International Journal of Sports Medicine. 17 (6): 434–438. doi:10.1055/s-2007-972874. PMID8884418.
Delbeke, F. (August 1996). "Doping in Cyclism: Results of Unannounced Controls in Flanders (1987-1994)". International Journal of Sports Medicine. 17 (6): 434–438. doi:10.1055/s-2007-972874. PMID8884418.