@article{SF_1974__6_133997,
     author = {K.H. Hofmann and R.P. Hunter},
     title = {On a centralizer result of {Hunter's} (correspondence between {Karl} {Heinrich} {Hofmann} and {Robert} {P.} {Hunter).}},
     journal = {Semigroup forum},
     pages = {365--372},
     publisher = {mathdoc},
     volume = {6},
     year = {1974},
     zbl = {0275.22004},
     url = {http://geodesic.mathdoc.fr/item/SF_1974__6_133997/}
}