Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Novak, V. 1957. Prispevek k poznani ucinnosti HCH (hexachlorcyklohexanu) na lykozroutta smrkoveho Ips typographus L. II [Effect of BHC on Ips typographus II]. Ceskoslovenske Akademie Zemedelskych Ved Sbornik Lesnictivi 3(5):423-436.