Conditions of natural regeneration of Norway spruce ecosystems in the Krkonoše Mts
Pavel CudlÃn, Douglas L. Godbold, Eleonora Bonifacio, Simon Egli, Heinz W. Fritz, Paolo Gonthier, Ewa Chmelikova, Piotr Kowalik, Maria G. Martinotti, Ivo Moravec, Giovanni Nicolotti, Cristina Varese, Martina Peter, Ermanno Zanini