<prompt> Qedela umusho olandelayo: UWichmann waqhubeka ephumelela eMqhudelwaneni Womhlaba Wokuqhudelana Ngezikebhe we - ICF, wathola izindondo ezingu - 18. Lokhu kuhlanganisa igolide ayisishiyagalolunye C-1 1000 m: 1979, C-1 10000 m: 1970, 1971, 1974, 1977, 1979, 1981, 1982; C-2 1000 m: 1971, isiliva ezine C-1 500: 1971, C-1 1000 m: 1966, 1978; C-2 1000 m: 1970, nezitini zethusi ezinhlanu C-1 1000 m: 1973,  <response>: 1975; C-1 10000 m: 1973, 1983; C-2 1000 m: 1973. 