%0 Journal Article %A Murphy, G. J. %T Lifting sets and the Calkin algebra %J Glasgow mathematical journal %D 1982 %P 83-84 %V 23 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500004808/ %R 10.1017/S0017089500004808 %F 10_1017_S0017089500004808