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\bibitem{Rojas_etal1990} {\textquotedblleft}\textit{Aerosols in Santiago de Chile : a study using receptor modeling with X-ray fluorescence and single particle analysis}{\textquotedblright}. Rojas CM, Artaxo P, Van Grieken R, Atmospheric environment: part B : urban atmosphere \textbf{24}, 227 (1990).   http://doi.org/10.1016/0957-1272(90)90028-S

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