@article{10_1023_A_1023068513188,
     author = {Liu, Liping and K\v{r}{\'\i}\v{z}ek, Michal},
     title = {The second order optimality conditions for nonlinear mathematical programming with $C^{1,1}$ data},
     journal = {Applications of Mathematics},
     pages = {311--320},
     publisher = {mathdoc},
     volume = {42},
     number = {4},
     year = {1997},
     doi = {10.1023/A:1023068513188},
     mrnumber = {1453935},
     zbl = {0903.90152},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1023/A:1023068513188/}
}