Radoszkowskiana tkalcui Schwarz 2001

Schwarz 2001. [Revision of the genus Radoszkowskiana Popov 1955 and a contribution to the knowledge on the genus Coelioxys Latreille 1809 (Hymenoptera: Apidae: Megachilinae).]. Linzer Biologische Beitraege, 33(2), 30 November 2001: 1267-1286