@article{MS2_1981__48_166741,
     author = {James C.S. Wong},
     title = {Characterisations of extremly amenable semigroups.},
     journal = {Mathematica Scandinavica},
     pages = {101--108},
     publisher = {mathdoc},
     volume = {48},
     year = {1981},
     zbl = {0477.43002},
     url = {http://geodesic.mathdoc.fr/item/MS2_1981__48_166741/}
}