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\bibitem{Martins_etal2016} {\textquotedblleft}\textit{Jackson Pollock{\textquoteright}s Number 1A, 1948 : a non-invasive study using macro-x-ray fluorescence mapping (MA-XRF) and multivariate curve resolution-alternating least squares (MCR-ALS) analysis}{\textquotedblright}. Martins A, Coddington J, van der Snickt G, van Driel B, McGlinchey C, Dahlberg D, Janssens K, Dik J, Heritage science \textbf{4}, 33 (2016).   http://doi.org/10.1186/S40494-016-0105-2

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