George, Richard M., Brent A. Barrett, and Kioumars Ghamkhar. “Evaluation of LiDAR Scanning for Measurement of Yield in Perennial Ryegrass”. Journal of New Zealand Grasslands 81 (October 22, 2019): 55–60. Accessed June 22, 2026. https://www.nzgajournal.org.nz/index.php/JoNZG/article/view/414.