Grønstøl, Gaute Bø, Torstein Solhøy, and Mass Kåre Løyning. “A Comparison of Mustard, Household Detergent and Formalin As Vermifuges for Earthworm Sampling”. Fauna norvegica 20 (December 31, 2000): 27-30. Accessed November 21, 2024. https://www.ntnu.no/ojs/index.php/fauna_norvegica/article/view/6000.