Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Stark, V. N. 1927a. Razvitie Blastophagus piniperda L. i B. minor Hart. na eli [Du development de Blastophagus piniperda L. et de B. minor Hart. sur le sapin]. Zashchita Rastenii 4:15-19.