@article{MAN_1970__188_162051,
     author = {E. OGG},
     title = {Die abz\"ahlbare {Topologie} und die {Existenz} von {Orthogonalbasen} in unendlichdimensionalen {R\"aumen.}},
     journal = {Mathematische Annalen},
     pages = {233--250},
     publisher = {mathdoc},
     volume = {188},
     year = {1970},
     zbl = {0189.12203},
     url = {http://geodesic.mathdoc.fr/item/MAN_1970__188_162051/}
}