Del Duca, Leo de Jesus Antunes. “Embrapa 52 - A New Wheat Cultivar Recommended for the State of Rio Grande Do Sul, Brazil”. Pesquisa Agropecuaria Brasileira, vol. 34, no. 6, June 1999, pp. 1107-18, doi:10.1590/S1678-3921.pab1999.v34.5297.