Verdenal, T., V. Zufferey, A. Dienes-Nagy, S. Belcher, F. Lorenzini, J. Rösti, C. Koestel, K. Gindro, and J.-L. Spring. “Intensity and Timing of Defoliation on White Cultivar Chasselas under the Temperate Climate of Switzerland”. OENO One, Vol. 52, no. 2, June 2018, pp. 93-04, https://oeno-one.eu/article/view/2158.