@article{articlea9f6a02d,
title   = {Controlling the size and shape of gold nanoparticles in fulvic acid colloidal solutions and their optical characterization using SERS},
author = {Santos Junior, David Sotero dos and Puebla, Ramón A. Alvarez and Oliveira Junior, Osvaldo Novais de and Aroca, Ricardo F.},
year = {2005},
doi = {10.1039/b506218g},
journal   = {Journal of Materials Chemistry}
}