The ornate public and university library which was designed by Henri Labrouste in the first half of the 19th century houses a vast collection of documents. You can find here all the usual library equipment (e.g. free internet connection, photocopiers and scanners) but before you enter the library, you need to fill up a document and present a valid ID.
Opening hours vary. Please check the schedule at the official website prior to your visit.
Wikipedia https://en.wikipedia.org/wiki/Sainte-Geneviève_Library
Official Website http://www.bsg.univ-paris3.fr/
Twitter https://twitter.com/biustegenevieve
Facebook https://www.facebook.com/BibliothequeSainteGenevieve
Phone +33144419797
Address 10 Place du Panthéon, Paris 75005, France
Coordinates 48°50'49.738" N 2°20'45.576" E