@article{106966, author = {Bohumil \v Smarda}, title = {Polars on closure spaces}, journal = {Archivum Mathematicum}, volume = {013}, year = {1977}, pages = {117-124}, zbl = {0374.06008}, mrnumber = {0460192}, language = {en}, url = {http://dml.mathdoc.fr/item/106966} }
Šmarda, Bohumil. Polars on closure spaces. Archivum Mathematicum, Tome 013 (1977) pp. 117-124. http://gdmltest.u-ga.fr/item/106966/
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