@article{10_1017_S0017089500004808,
     author = {Murphy, G. J.},
     title = {Lifting sets and the {Calkin} algebra},
     journal = {Glasgow mathematical journal},
     pages = {83--84},
     year = {1982},
     volume = {23},
     number = {1},
     doi = {10.1017/S0017089500004808},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500004808/}
}