%0 Journal Article
%A Marek Skarupski
%A Krzysztof J. Szajowski
%T CORRIGENDUM-Duration problem: basic concept and some extensions
%J Mathematica Applicanda
%D 2017
%P  211-216
%V 45
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/ma.v45i2.4385/
%R 10.14708/ma.v45i2.4385
%G pl
%F 10_14708_ma_v45i2_4385