Laine, Anne, Juhani Itämies, Markku Orell, and Sisko Kvist. “Invertebrate Fauna of Norway Spruce (<i>Picea abies</I>) Saplings and Its Connection With the Nitrogen, Sulphur and Phenolics Concentration of the Needles”. Entomologica Fennica 5, no. 4 (December 1, 1994): 177–185. Accessed May 26, 2024. https://journal.fi/entomolfennica/article/view/83816.