Song, Y. and Shumin, Z. (2015) “Design and parameter optimization of flexible comb-type grass seed metering device”, International Journal of Agricultural and Biological Engineering, 8(1), pp. 9–16. Available at: https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/1294 (Accessed: 26 December 2025).