???We chose Scopus and ScienceDirect for their breadth of scientific content, not only in our core research fields, but also in related disciplines such as engineering and other technical sciences???, said Karin Mittenzwei, library director of the Universit??tsbibliothek Georgius Agricola der TU Bergakademie Freiberg. ???We were also impressed with Scopus??? introduction of features such as Auth