Détermination des enthalpies de formation des polysulfures de potassium Jean-Marie Letoffe, Roger Dominique Joly, Jack Thourey, Guy Perachon and Jean Bousquet J. Chim. Phys., 71 (1974) 427-430 Published online: 29 May 2017 DOI: 10.1051/jcp/1974710427