Laasonen, Erkki, and Leena Laasonen. “Habitual Differences of Phyllonorycter Salictella (Zeller, 1846 ) and P. Heringiella ( Grönlien, 1932) (Lepidoptera: Gracillariidae) in Two Finnish Materials; A Problem Pair”. Entomologica Fennica 11, no. 3 (September 1, 2000): 175–181. Accessed March 14, 2026. https://journal.fi/entomolfennica/article/view/84063.