1. S313.3—Soil Cone Penetrometer;ASAE Standards,2004
2. S477—Terminology for Soil-Engaging Components for Conservation-Tillage Planters, Drills, and Seeders;ASAE Standards,2007
3. Corte de palha de cana-de-açúcar;Bianchini;Revista Brasileira de Engenharia Agrícola e Ambiental,2004
4. Penetrógrafo eletrônico automático;Bianchini;Revista Brasileira de Engenharia Agrícola e Ambiental,2002
5. Cornstalk residue shearing by rolling coulter;Choi;Transactions of ASAE,1986