@book{MSMF_1968__15__3_0, author = {Fouques, A.}, title = {Syst\`emes de $a$-id\'eaux dans un demi-groupe non commutatif}, series = {M\'emoires de la Soci\'et\'e Math\'ematique de France}, publisher = {Soci\'et\'e math\'ematique de France}, number = {15}, year = {1968}, doi = {10.24033/msmf.15}, mrnumber = {38 #4582}, zbl = {0179.03903}, language = {fr}, url = {http://archive.numdam.org/item/MSMF_1968__15__3_0/} }