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\bibitem{Osan_etal2001} {\textquotedblleft}\textit{Characterization of atmospheric aerosol particles over Lake Balaton, Hungary, using X-ray emission methods}{\textquotedblright}. Os{\'a}n J, Alf{\"o}ldy B, Kurunczi S, T{\"o}r{\"o}k S, Boz{\'o} L, Worobiec A, Injuk J, Van Grieken R, Id{\"o}j{\'a}r{\'a}s: quarterly journal of the Hungarian Meteorological Service \textbf{105}, 145 (2001)

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