@article{CMH_1952__26_139041,
     author = {L. R\'edei and O. Steinfeld},
     title = {\"Uber {Ringe} mit gemeinsamer multiplikativer {Halbgruppe.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {146--151},
     publisher = {mathdoc},
     volume = {26},
     year = {1952},
     zbl = {0047.26502},
     url = {http://geodesic.mathdoc.fr/item/CMH_1952__26_139041/}
}