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A Survey of Blemishes on Processed Microfilm

C S McCamy1, S R Wiley1, J A Speckman1

  • 1Institute for Basic Standards, National Bureau of Standards, Washington, D.C. 20234.

Journal of Research of the National Bureau of Standards. Section A, Physics and Chemistry
|January 14, 2020
PubMed

Keywords:
Aging blemishesarchival recordsblemishesmicrofilm blemishesmicroscopic spotsredox blemishes

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