Holes, Annamária, et al. “Effects of Different Biochars, Compost and Lime Treatments on the Chemical Properties of Sandy Soils”.
COLUMELLA – Journal of Agricultural and Environmental Sciences, vol. 1, no. 2, Nov. 2014, pp. 49-55,
https://doi.org/10.18380/SZIE.COLUM.2014.1.2.49.