Mao, H., G. Ma, L. Han, J. Hu, F. Gao, and Y. Liu. “A Whole Row Automatic Pick-up Device Using Air Force to Blow Out Vegetable Plug Seedlings”. Spanish Journal of Agricultural Research, Vol. 18, no. 4, Dec. 2020, p. e0211, doi:10.5424/sjar/2020184-17003.