@article{701237,
     title = {On some nonclosed subspaces of metric linear spaces},
     booktitle = {Abstracta. 9th Winter School on Abstract Analysis},
     series = {GDML\_Books},
     publisher = {Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1981},
     pages = {110-113},
     url = {http://dml.mathdoc.fr/item/701237}
}

Lipecki, Z. On some nonclosed subspaces of metric linear spaces, dans Abstracta. 9th Winter School on Abstract Analysis, GDML_Books,  (1981), pp. 110-113. http://gdmltest.u-ga.fr/item/701237/