Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Schimitschek, E. 1948i. Stand der Massenvermehrung und Bekampfung des Ips typographus in Niederosterreich [The outbreak of I. typographus in lower Austria and its control]. Osterreich Forst- und Holzwirtschaft 3 Jan. Sendernum, p. 7-15.