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\bibitem{Cloetens_etal1999} {\textquotedblleft}\textit{Holotomography: quantitative phase tomography with micrometer resolution using hard synchrotron radiation X-rays}{\textquotedblright}. Cloetens P, Ludwig W, Baruchel J, van Dyck D, van Landuyt J, Guigay JP, Schlenker M, Applied physics letters \textbf{75}, 2912 (1999).   http://doi.org/10.1063/1.125225

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