<prompt> Nyora kupfuurira kweiyi ndima - Schärer akakundawo menduru gumi nemana paFIBT World Championships negoridhe nomwe Vaviri-murume: 1978, 1979, 1982; Vane-murume: 1971, 1973, 1975, 1986  <response>: , sirivha nhatu Vanhu vaviri: 1983, Vanhu vana: 1977, 1978, uye ndarira ina Vanhu vaviri: 1981, Vanhu vana: 1979, 1981, 1982. Mazita okutanga maviri akahwina somunhu anodzvinyirira mumutambo wemutyairi René Stadler asati ava mutyairi iye pachake. 