Esmaeelnejad, L., M. Shorafa, M. Gorji, and S. M. Hosseini. “Enhancement of Physical and Hydrological Properties of a Sandy Loam Soil via Application of Different Biochar Particle Sizes During Incubation Period”. Spanish Journal of Agricultural Research, Vol. 14, no. 2, June 2016, p. e1103, doi:10.5424/sjar/2016142-9190.