@misc{SF_1978__16_134279,
     title = {Bibliographical {Items}},
     journal = {Semigroup forum},
     pages = {109--110},
     publisher = {mathdoc},
     volume = {16},
     year = {1978},
     url = {http://geodesic.mathdoc.fr/item/SF_1978__16_134279/}
}