Schlehuber, A. M.; Moreira, J. C. S.; Medeiros, M. C. Correlation Coefficients in Grain Yields in Wheat Variety Tests Between Locations Grow in Rio Grande Do Sul, Brazil, in 1966 and in 1967. PAB 2014, 5 (1), 235-241. https://doi.org/10.1590/S1678-3921.pab1970.v5.17674.