@article{article3967de1c,
title   = {Determination of optimum wavelength and derivative order in spectrophotometry for quantitation of hydroquinone in creams},
author = {García, Pedro López and Santoro, Maria Inês Rocha Miritello and Singh, Anil Kumar and Kedor-Hackmann, Erika Rosa Maria},
year = {2007},
doi = {10.1590/s1516-93322007000300008},
journal   = {Revista Brasileira de Ciências Farmacêuticas}
}