STEVENS, D. NZGA PRESIDENT’S ADDRESS 2016 Systems research: the need for a change of thinking. Journal of New Zealand Grasslands, [S. l.], v. 79, p. 11–14, 2017. DOI: 10.33584/jnzg.2017.79.543. Disponível em: https://www.nzgajournal.org.nz/index.php/JoNZG/article/view/543. Acesso em: 2 sep. 2026.