Sommer, S., P. Wegmann-Herr, M. Wacker, and U. Fischer. 2016. “Rationale for a Stronger Disposition of Chardonnay Wines for Stuck and Sluggish Fermentation”. South African Journal of Enology and Viticulture 36 (1):180-90. https://doi.org/10.21548/36-1-951.