Retention as an integrated biodiversity conservation approach for continuous-cover forestry in Europe. - Gustafsson L; Bauhus J; Asbeck T; Augustynczik ALD; Basile M; Frey J; Gutzat F; Hanewinkel M; Helbach J; Jonker M; Knuff A; Messier C; et al. (Ambio, 2020)