Ervi, the intraspecific Barbera x Croatina crossbreed: first growing and winemaking experiences in Lombardia (northwest of Italy)Alberto Vercesi, Alessandra Garavani, Stefano Poni and Matteo GattiBIO Web Conf., 13 (2019) 02009DOI: https://doi.org/10.1051/bioconf/20191302009