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@article{NCD_2012_20_a10, author = {Izidor Hafner}, title = {Slovenian {Competitions} in {Logic}}, journal = {Review of the National Center for Digitization}, pages = {85 }, publisher = {mathdoc}, volume = {20}, year = {2012}, language = {en}, url = {http://geodesic.mathdoc.fr/item/NCD_2012_20_a10/} }
Izidor Hafner. Slovenian Competitions in Logic. Review of the National Center for Digitization, Tome 20 (2012), p. 85 . http://geodesic.mathdoc.fr/item/NCD_2012_20_a10/