@book{MSMF_1972__29__3_0,
     author = {Delaroche, Claire},
     title = {Extensions des $C^\ast $-alg\`ebres},
     series = {M\'emoires de la Soci\'et\'e Math\'ematique de France},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {29},
     year = {1972},
     doi = {10.24033/msmf.56},
     mrnumber = {58 #30290},
     zbl = {0248.46047},
     language = {fr},
     url = {http://www.numdam.org/item/MSMF_1972__29__3_0/}
}