Tomaraee, P., A. Mardani, A. Mohebbi, and H. Taghavifar. “Relationships Among the Contact Patch Length and Width, the Tire Deflection and the Rolling Resistance of a Free-Running Wheel in a Soil Bin Facility”. Spanish Journal of Agricultural Research, Vol. 13, no. 2, May 2015, p. e0211, doi:10.5424/sjar/2015132-5245.