Kaltbach, Pedro, et al. “Relationship Between the El Niño-Southern Oscillation and Yield and Sugar Content of Wine Grapes Grown in Santana Do Livramento, RS, Brazil”. Semina: Ciências Agrárias, vol. 43, no. 5, June 2022, pp. 2031-44, doi:10.5433/1679-0359.2022v43n5p2031.