@article{KYB_1990_26_5_a4,
     author = {Luk\v{s}an, Ladislav},
     title = {Computational experience with improved variable metric methods for unconstrained minimization},
     journal = {Kybernetika},
     pages = {415--431},
     year = {1990},
     volume = {26},
     number = {5},
     mrnumber = {1079679},
     zbl = {0716.65055},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1990_26_5_a4/}
}