OLYKAN, S. T.; LUCAS, R. J.; MOOT, D. J. Sampling methods for clover species in grazed pastures to diagnose mineral deficiencies. Journal of New Zealand Grasslands, [S. l.], v. 81, p. 241–248, 2019. DOI: 10.33584/jnzg.2019.81.407. Disponível em: https://www.nzgajournal.org.nz/index.php/JoNZG/article/view/407. Acesso em: 27 nov. 2025.