%0 Journal Article %A Khan, Rahmat A. %A Ahmad, Bashir %T A note on rapid convergence of approximate solutions for second order periodic boundary value problems %J Archivum mathematicum %D 2005 %P 135-143 %V 41 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_2005__41_2_a0/ %G en %F ARM_2005__41_2_a0