@article{10_1007_s10492_009_0028_2,
     author = {Antczak, Tadeusz},
     title = {A second order $\eta $-approximation method for constrained optimization problems involving second order invex functions},
     journal = {Applications of Mathematics},
     pages = {433--445},
     publisher = {mathdoc},
     volume = {54},
     number = {5},
     year = {2009},
     doi = {10.1007/s10492-009-0028-2},
     mrnumber = {2545410},
     zbl = {1212.90307},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10492-009-0028-2/}
}