LINDQVIST, I., B. LINDQVIST, and K. TIILIKKALA. 2010. “Birch Tar Oil Is an Effective Mollusc Repellent: Field and Laboratory Experiments Using Arianta Arbustorum (Gastropoda: Helicidae) and Arion Lusitanicus (Gastropoda: Arionidae)”. Agricultural and Food Science 19 (1), 1-12. https://doi.org/10.2137/145960610791015050.