Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Nunberg, M. 1950a. Aparat dzwiekowy u Ips sexdentatus Boern. (Col. Scolytidae) [The stridulating organ of Ips sexdentatus Boern.]. Annales Musei Zoologici Polonici 14(9):135-140, pl. 10.