TY - JOUR TI - Growth of N2-fixing African savanna Acacia species is constrained by below-ground competition with grass AU - Cramer, Michael D AU - Van Cauter, An AU - Bond, William J T2 - Journal of Ecology DA - 2010/// PY - 2010 VL - 98 IS - 1 SP - 156 EP - 167 SN - 1365-2745 ER -