2 literature references for Osmia euchreiformis Radoszkowski, 1882:

Author:
Year: 2008
Title:
Source: manuscript, World Bee Checklist Project - update 2008-09
Author: Tkalcu, Borek
Year: 1974
Title: Revision und Klassifikation der bisher zur Untergattung Hoplosmia Thomson gestellten Anthocopa-Arten (Hymenoptera, Apoidea, Megachilidae)
Source: Acta Entomologica Bohemoslovaca, vol. 71, no. 2