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Tomaszewski, R.: Citations to chemical databases in scholarly articles : to cite or not to cite? (2019)
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Noruzi, A.: Google Scholar : the new generation of citation indexes (2005)
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CAS's SciFinder and new SciFinder Scholar deliver access to comprehensive chemistry databases (1997)
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Neuhaus, C.; Daniel, H.-D.: Data sources for performing citation analysis : an overview (2008)
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Marx, W.: Special features of historical papers from the viewpoint of bibliometrics (2011)
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