TY  - JOUR
AU  - Marek Skarupski
AU  - Krzysztof J. Szajowski
TI  - CORRIGENDUM-Duration problem: basic concept and some extensions
JO  - Mathematica Applicanda
PY  - 2017
SP  -  211
EP  - 216
VL  - 45
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/ma.v45i2.4385/
DO  - 10.14708/ma.v45i2.4385
LA  - pl
ID  - 10_14708_ma_v45i2_4385
ER  -