%0 Journal Article %A Krzysztof Tatarkiewicz %T Troubles with the year %J Antiquitates Mathematicae %D 2009 %P 287 - 299 %V 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/am.v3i1.6360/ %R 10.14708/am.v3i1.6360 %G pl %F 10_14708_am_v3i1_6360