P. L. Scheeren, F. I. F. de Carvalho, and L. C. Federizzi, “Combining ability of six agronomic traits in wheat (Triticum aestivum L.)”, PAB, vol. 30, no. 6, pp. 831–846, Jun. 1995, doi: 10.1590/S1678-3921.pab1995.v30.4368.