Vauhkonen, V., S. Ventelä, J. Suojaranta, R. Lauhanen, A. Pasila, T. Kuokkanen, H. Prokkola, and S. Syväjärvi. “The Phytotoxic Effects and Biodegradability of Stored Rapeseed Oil and Rapeseed Oil Methyl Ester”. Agricultural and Food Science, vol. 20, no. 2, Jan. 2011, pp. 131-42, doi:10.2137/145960611797215673.