Bell, N.L., S. Hardwick, J.P.J. Eerens, and T.K. James. “Managing Biological Succession in Intensive Pastoral Ecosystems for Improved Production and Sustainability”. New Zealand Plant Protection 59 (August 1, 2006): 271–280. Accessed December 3, 2023. https://journal.nzpps.org/index.php/nzpp/article/view/4464.