@article{article99bf270f,
title   = {Mechanism of metribuzin herbicide sorption by humic acid samples from peat and vermicompost},
author = {Landgraf, Maria Diva and Silva, Sebastião Claudino da and Rezende, Maria Olimpia de Oliveira},
year = {1998},
doi = {10.1016/s0003-2670(98)00049-x},
journal   = {Analytica Chimica Acta}
}