@incollection{MSMF_1973__35__145_0,
     author = {Dang Ngoc Nghiem},
     title = {$\Sigma ^\ast $-alg\`ebres, probabilit\'es non commutatives et applications},
     booktitle = {Contributions au calcul des probabilit\'es},
     series = {M\'emoires de la Soci\'et\'e Math\'ematique de France},
     pages = {145--189},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {35},
     year = {1973},
     doi = {10.24033/msmf.118},
     mrnumber = {56 #9283},
     zbl = {0288.46059},
     url = {http://www.numdam.org/articles/10.24033/msmf.118/}
}