@article{CMUC_1984__25_4_a13,
     author = {Shakhmatov, Dmitri\u{i} B.},
     title = {No upper bound for cardinalities of {Tychonoff} {C.C.C.} spaces with a $G_\delta$-diagonal exists (an answer to {J.} {Ginsburg} and {R.} {G.} {Woods'} question)},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {731--746},
     publisher = {mathdoc},
     volume = {25},
     number = {4},
     year = {1984},
     mrnumber = {782022},
     zbl = {0572.54003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1984__25_4_a13/}
}