Ortiz, Joseph D.; O'Connell, Suzanne (2004): Toward a non-linear grayscale calibration method for legacy photographic collections. Springer, Dordrecht, Netherlands, In: Francus, Pierre (editor), Image analysis, sediments and paleoenvironments, 7, 125-141, georefid:2005-064790

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Data set link: http://sedis.iodp.org/pub-catalogue/index.php?id=2005-064790 (c.f. for more detailed metadata)
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