Voigt-Gair, L. et al. 2013. The dynamic of the "Coffee Quality Paraná" contest in the production of specialty coffees. Semina: Ciências Agrárias. 34, 6Supl1 (Dec. 2013), 3173–3180. DOI:https://doi.org/10.5433/1679-0359.2013v34n6Supl1p3173.