@article{JDM_1971__73_146599,
     author = {S.L. Segal},
     title = {On {Characterizing} x... .},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {86--91},
     publisher = {mathdoc},
     volume = {73},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JDM_1971__73_146599/}
}