Natural organic matter fractionation along the treatment of water for human consumption by Vieira R.F., Berenguel A.T., Silva M.A., Vilaca J.S., Domingues V.F. and Figueiredo S.A.
Competitive effects of herbaceous species on water potential and growth of quercus ithaburensis ssp. Macrolepis seedlings by Pantera A. and Papanastasis V.P.