Wintering ability of Calophoma complanata under the conditions of Saint Petersburg areaSophie Sokornova, Maria Gomzhina, Elena Gasich, Igor Merkoulov, Darya Aman, Galina Frolova, Anton Radaev and Alexander BerestetskiyBIO Web Conf., 18 (2020) 00027DOI: https://doi.org/10.1051/bioconf/20201800027