Corpus Solvay of the Paul Langevin Collection kept in custody at ESPCI -Paris.
Contact :
Catherine Kounelis, director of "Bibliothèque et Centre de Ressources Historiques"
Catherine.Kounelis@espcipsl.eu
--> Access to the Paul Langevin collection on the PSL_Explore website.
Digitization of the archives at "Paris Sciences et Lettres"
Contact :
Elisa Thomas, webmaster Université Paris-Sciences et Lettres