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@article{PDM_2009_10_a3, author = {N. G. Parvatov}, title = {About finite lower neighbourhood in functional space}, journal = {Prikladna\^a diskretna\^a matematika}, pages = {11}, publisher = {mathdoc}, number = {10}, year = {2009}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/PDM_2009_10_a3/} }
N. G. Parvatov. About finite lower neighbourhood in functional space. Prikladnaâ diskretnaâ matematika, no. 10 (2009). http://geodesic.mathdoc.fr/item/PDM_2009_10_a3/