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Lithuanian Mathematical Journal > 2018 > 58 > 1 > 104-112
Topology and its Applications > 2014 > 178 > Complete > 438-452
Open Mathematics > 2014 > 12 > 6 > 896-910
Lithuanian Mathematical Journal > 2018 > 58 > 1 > 104-112
Topology and its Applications > 2014 > 178 > Complete > 438-452
Open Mathematics > 2014 > 12 > 6 > 896-910