1. On-the-go soil sensors for precision agriculture;Adamchuk;Comput. Electron. Agr.,2004
2. Application of a strain gauge array to estimate soil mechanical impedance on-the-go;Adamchuk;Trans. ASAE,2001
3. Mapping of Spatial and Vertical Variation of Soil Mechanical Resistance Using a Linear Pressure Model. Paper No. 01-1019;Adamchuk,2001
4. Field Evaluation of the Improved Version of the UC Davis Compaction Profile Sensor (UCD-CPS). Paper No. 04-1037;Andrade,2004
5. ASAE Standards, 2004. S313.3. Soil Cone Penetrometer. ASAE, St. Joseph, Michigan, USA.