@article{701865,
     title = {On completeness of the representation space of J. W. Calkin},
     booktitle = {Proceedings of the 13th Winter School on Abstract Analysis},
     series = {GDML\_Books},
     publisher = {Circolo Matematico di Palermo},
     address = {Palermo},
     year = {1985},
     pages = {[79]-81},
     mrnumber = {MR0894274},
     zbl = {0609.47054},
     url = {http://dml.mathdoc.fr/item/701865}
}

Kürsten, K.-D. On completeness of the representation space of J. W. Calkin, dans Proceedings of the 13th Winter School on Abstract Analysis, GDML_Books,  (1985), pp. [79]-81. http://gdmltest.u-ga.fr/item/701865/