Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Novak, V. 1971. Study on the effectiveness of the chemosterilant Apholate against Ips typographus and Hylohius abietis [In Czech, Russian, English summaries] . Prace Vyzkumneho Ustavu Lesniho Hospodarstvi a Myslivosti Zbraslav-Strnady 40:35-51.