@article{NCD_2012_20_1_a10,
     author = {Izidor Hafner},
     title = {Slovenian {Competitions} in {Logic}},
     journal = {Review of the National Center for Digitization},
     pages = {85 - 88},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {2012},
     url = {https://geodesic-test.mathdoc.fr/item/NCD_2012_20_1_a10/}
}