Centro de Estudos Geográficos (CEG), Instituto de Geografia e Ordenamento do Território (IGOT), Universidade de Lisboa, Ss. Cyril and Methodius University in Skopje, University of Granada, Universidad Complutense de Madrid, University of Milan, Unaffiliated Authors, ETH Zurich, Universidade de Lisboa, Unaffiliated Authors, Research Institute for Nature and Forest, Latvian State Institute of Wood Chemistry, Duzce University, Universidade de Tras-os-Montes e Alto Douro (UTAD), University of Belgrade, Slovenian Forestry Institute, University of Castilla-La Mancha, Latvian State Institute of Wood Chemistry, Catholic University of Ávila, University of Alicante, Leiden University - Centre of Environmental Science (CML), Universidad de Alicante, CEAM, Estonian University of Life Sciences, Aristotle University of Thessaloniki, University of Belgrade and Estonian University of Life Sciences