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\bibitem{Samek_etal2006} {\textquotedblleft}\textit{Badanie sk{\l}adu powietrza w zabytkowych ko{\'s}cio{\l}ach}{\textquotedblright}. Samek L, Worobiec A, Spolnik Z, Van Grieken R, Analytika , 26 (2006)

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