Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Predtetshenskij, N. J. 1930. Entomo-phytopathologische Beobachtungen an Krankheiten an Parkbaumen in Sokolnitska Rostsha im Jahre 1929 [In Russian]. Zashchita Rastenii 7:384-397, fig. 5.