@article{701196,
     title = {Does $2^X$ exist for a proper class X?},
     booktitle = {Abstracta. 8th Winter School on Abstract Analysis},
     series = {GDML\_Books},
     publisher = {Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1980},
     pages = {138-142},
     url = {http://dml.mathdoc.fr/item/701196}
}

Rosický, J. Does $2^X$ exist for a proper class X?, dans Abstracta. 8th Winter School on Abstract Analysis, GDML_Books,  (1980), pp. 138-142. http://gdmltest.u-ga.fr/item/701196/