@article{AUPO_2007__46_1_a0,
     author = {Bedna\v{r}{\'\i}k, Du\v{s}an and Pastor, Karel},
     title = {Second-order sufficient condition for $\tilde\ell$-stable functions},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {7--18},
     publisher = {mathdoc},
     volume = {46},
     number = {1},
     year = {2007},
     mrnumber = {2387488},
     zbl = {1153.49311},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_2007__46_1_a0/}
}