Patterns of mast fruiting of common beech, sessile and common oak, Norway spruce and Scots pine in Central and Northern Europe

Anita Nussbaumer^*, Peter Waldner, Sophia Etzold, Arthur Gessler, Sue Benham, Iben Margrete Thomsen, Bruno Bilde Jørgensen, Volkmar Timmermann, Arne Verstraeten, Geert Sioen, Pasi Rautio, Liisa Ukonmaanaho, Mitja Skudnik, Vladislav Apuhtin, Sabine Braun, Alexandra Wauer