Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Kalandra, A. 1947c. Lykozrout smrkovy nebezpecne ohrozuje smrkove pohranicni lesy [Der Fichtenborkenkafer bedroht in gefahrlicher Weise die Fichtenwalder an der Grenze] . Zemedelsky Pokrok 14:88-89.