R. de P. Ferreira, M. de A. Botrel, A. V. Pereira, and C. D. Cruz, “Evaluation of alfalfa cultivars and estimates of repeatability coefficient of forage traits”, PAB, vol. 34, no. 6, pp. 995–1002, Jun. 1999, doi: 10.1590/S1678-3921.pab1999.v34.5278.