@article{AUPO_1999_38_1_a2,
     author = {Dost\'al, Zden\v{e}k},
     title = {Inexact solution of auxiliary problems in {Polyak} type algorithms},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {25--30},
     year = {1999},
     volume = {38},
     number = {1},
     mrnumber = {1767187},
     zbl = {0972.90052},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_1999_38_1_a2/}
}