Reference

J. Weiser, Rudolf Wegensteiner, Z. Zizka (1997): Ultrastructures of Nosema typographi Weiser 1955 (Microspora: Nosematidae) of the bark beetle Ips typographus L. (Coleoptera; Scolytidae) – J. Invert. Path. – 70/2: 156 - 160.