HERCULES : Studying long-term changes in Europe′s landcapes - Kolen, Jan, 1962-; Crumley, Carole L.; Jan Burgers, Gert; Hackwitz, Kim von; Howard, Peter; Karro, Krista; de Kleijn, Maurice; Löwenborg, Daniel; van Manen, Niels; Palang, Hannes; Plieninger, Tobias; Printsmann, Anu; et al. (Leiden University, 2015)