@article{RSMUP_1974__51__97_0,
     author = {Tancredi, Alessandro},
     title = {Sur les espaces annel\'es avec groupe d'op\'erateurs},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {97--104},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {51},
     year = {1974},
     mrnumber = {425196},
     zbl = {0306.54054},
     language = {fr},
     url = {http://www.numdam.org/item/RSMUP_1974__51__97_0/}
}