%0 Journal Article %A Staynova, Petra %T A Problem on Infinite Series: Difficult or Easy? %J Mathematics and Education in Mathematics %D 2010 %P 237-242 %V 39 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MEM_2010_39_1_a25/ %G en %F MEM_2010_39_1_a25