%0 Journal Article %A Antczak, Tadeusz %T A second order $\eta $-approximation method for constrained optimization problems involving second order invex functions %J Applications of Mathematics %D 2009 %P 433-445 %V 54 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1007/s10492-009-0028-2/ %R 10.1007/s10492-009-0028-2 %G en %F 10_1007_s10492_009_0028_2