Weibel, Franco; Schmid, Andi and Häseli, Andreas (2003) Efficient Multi-location Testing of Scab Resistant Cultivars for Organic Apple Production in Switzerland. In: Janick, J. (Ed.) XXVI International Horticultural Congress – Genetics and Breeding of Tree Fruits and Nuts, International Society for Horticultural Sience (ISHS), pp. 335-342.