Rudnicki, C. S., P. D. Waquil, and C. L. Agne. “The Differents Faces of Trust in the Tobacco Production in Rio Grande Do Sul, Brazil: Relations Between Farmers and the Field Technicians”. Redes , vol. 19, no. 2, Feb. 2014, pp. 224-41, doi:10.17058/redes.v19i2.3343.