Lal, H. and Nunes, P.F. 2014. Operational performance of the wheeled tool-carriers for plowing and ridging. Pesquisa Agropecuaria Brasileira. 17, 8 (Apr. 2014), 1199–1212. DOI:https://doi.org/10.1590/S1678-3921.pab1982.v17.16027.