© 2021 Michal Lalík, Juraj Galko, Andrej Kunca, Christo Nikolov, Slavomír Rell, Milan Zúbrik, Marcel Dubec, Jozef Vakula, Andrej Gubka, Roman Leontovyč, Valéria Longauerová, Bohdan Konôpka, Jaroslav Holuša, published by National Forest Centre and Czech University of Life Sciences in Prague, Faculty of Forestry and Wood Sciences
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