%0 Journal Article %A Bahram Agheli %T Approximate Solution of Bratu Differential Equations Using Trigonometric Basic Functions %J Kragujevac Journal of Mathematics %D 2021 %P 203 %V 45 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/KJM_2021_45_2_a3/ %G en %F KJM_2021_45_2_a3