@inproceedings{inproceedings583618b7,
title   = {Isolation of humin from the most recalcitrant components of the soil organic matter using aqueous urea and acidified dimethylsulfoxide},
author = {Guixue, Song and Novotny, Etelvino Henrique and Azevêdo, Eduardo Ribeiro de and Bonagamba, Tito José and Byrne, Corinna and Cross, Patrick and Clapp, Edward and Hayes, Michael Hilary Bermingham},
year = {2006},
booktitle   = {Meeting of the International Humic Substances Society}
}