Louw-Gaume, A. E.; Schweizer, N.; Rao, I. M.; Gaume, A. J.; Frossard, E. Temporal Differences in Plant Growth and Root Exudation of Two <i>Brachiaria</i> Grasses in Response to Low Phosphorus Supply. Trop. grassl.-Forrajes trop. 2017, 5, 103-116.