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In this article we describe new methods for the automatic recognition of the bibliographical data of cited articles in retrodigitized mathematical journal articles and their use for the automatic production of links to their respective reviews in MathSciNet an Zentralblatt MATH. Thus whenever one of these two review journals has a permanent link from the review to the digital full text of the cited article, the full text can automatically be retrieved, searched and printed. The new links from a digital document to the Mathematics Databases help enlarging the existing distributed digital Mathematics library. Examples of retrodigitized articles with automatic links in PDF and also in DjVu format are presented.