Lopes, M. M., Salviano, A. A. C., Araujo, A. S. F., Nunes, L. A. P. L. and Oliveira, M. E. (1) “Changes in soil microbial biomass and activity in different Brazilian pastures”, Spanish Journal of Agricultural Research, 8(4), pp. 1253-1259. doi: 10.5424/sjar/2010084-1411.