She won a bronze medal in the relay at the World Orienteering Championships in Thun in 1981 , together with Ruth Schmid , Annelies Meier and Ruth Humbel .
Irene Bucher is a Swiss orienteering competitor .
Irene Bucher won a bronze medal in the relay at the World Orienteering Championships in Thun in 1981 , together with Ruth Schmid , Annelies Meier and Ruth Humbel .
Irene Bucher is a Swiss orienteering competitor .