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@article{MAN_1971__195_162206, author = {Jens Peter Reus Christensen}, title = {On {Some} {Properties} of {Effros} {Borel} {Structure} on {Spaces} of {Closed} {Subsets.}}, journal = {Mathematische Annalen}, pages = {17--23}, publisher = {mathdoc}, volume = {195}, year = {1971}, zbl = {0215.48303}, url = {http://geodesic.mathdoc.fr/item/MAN_1971__195_162206/} }
Jens Peter Reus Christensen. On Some Properties of Effros Borel Structure on Spaces of Closed Subsets.. Mathematische Annalen, Tome 195 (1971), pp. 17-23. http://geodesic.mathdoc.fr/item/MAN_1971__195_162206/