Maante-Kuljus, Mariana, Ele Vool, Leila Mainla, Marge Starast, and Kadri Karp. 2019. “Berry Quality of Hybrid Grapevine (Vitis) Cultivars Grown in the Field and in a Polytunnel”. Agricultural and Food Science 28 (3):137–144. https://doi.org/10.23986/afsci.76822.