<prompt> Qedela umusho olandelayo: UBahmann uphinde wanqoba izindondo eziyisithupha ku- ICF Canoe Slalom World Championships ngezindondo ezintathu zegolide K-1: 1971,  <response>: 1977; K-1 ithimba: 1971, isiliva ezimbili K-1 ithimba: 1975, 1977 futhi zethusi K-1: 1975. 