@article{articlea09c40b2,
title   = {Resonance Raman spectra of hydroxyphenyl squaraines: acid-base versus aggregation equilibria},
author = {Lopes, José Guilherme da Silva and Farani, Régis de Almeida and de Oliveira, Luiz Fernando Cappa and Santos, Paulo Sérgio},
year = {2006},
doi = {10.1002/jrs.1448},
journal   = {Journal of Raman Spectroscopy}
}