@inbook{402638,
     title = {[Front matter]},
     booktitle = {Topological papers of Eduard \v Cech},
     series = {GDML\_Books},
     publisher = {Academia Publishing House of the Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1968},
     url = {http://dml.mathdoc.fr/item/402638}
}