Classes and relations (Sections 1-5)
Topological spaces, GDML_Books, (1966), p. 17-90 / Harvested from
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@inbook{402626,
     title = {Classes and relations (Sections 1-5)},
     booktitle = {Topological spaces},
     series = {GDML\_Books},
     publisher = {Academia Publishing House of the Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1966},
     pages = {17-90},
     url = {http://dml.mathdoc.fr/item/402626}
}

 (éd.). Classes and relations (Sections 1-5), dans Topological spaces, GDML_Books,  (1966), pp. 17-90. http://gdmltest.u-ga.fr/item/402626/