Karulis, Konstantīns. “Lit. ur̃dinti, lett. urdīt – Lautmalende Wörter?”. Baltistica 25, no. 3[1] priedas (September 1, 1989): 117–120. Accessed May 19, 2026. https://www.zurnalai.vu.lt/baltistica/article/view/42494.