In addition to the BU catalogue, you can consult the following resources:
Bibliothèque Municipale de Lyon,
CCFR (French Union Catalogue),
Sudoc catalogue,
Catalogue commun des bibliothèques des universités catholiques de France (Origène),
Mir@bel facilitates access to online journals by providing links to online content (full text, summaries, and so on) and linking to a wide range of complementary sites,
Sign@l (Signalling the contents of periodicals in the humanities and social sciences)