Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Filippenkova, V. V. 1971. Parazitiy stovolovykh vrediteley sosny v lesakh Srednego Zavolsh'ya [Parasites of stem pests of Pinus sylvestris in forests of the Middle Volga] . Entomologicheskoe Obozrenie 50:763-769.