[1]
R. A. Melquiades, I. Lobo, C. L. B. Guedes, and J. P. Pinto, “Analysis of benzene, toluene, ethylbenzene and xylenes in soils by headspace and gas chromatography/flame ionization detector”, Semin., Exact Tech. Scienc., vol. 27, no. 2, pp. 113–120, Dec. 2006.