J. L. Danelon, S. H. Magaz, H. M. Magaz, and D. Colombatto, “Comparison of enhanced, tame Italian ryegrass (Lolium multiflorum L.), long established and naturally reseeded, versus an annual ryegrass crop in the flood plain of Río Salado, Argentina: Winter forage production under grazing”, ALPA, vol. 21, no. 1, Jun. 2012.