@article{NUMA_1980__36_132708,
     author = {J. Br\"auninger},
     title = {A {Variable} {Metric} {Algorithm} for {Unconstrained} {Minimization} {Without} {Evaluation} of {Derivatives.}},
     journal = {Numerische Mathematik},
     pages = {359--374},
     publisher = {mathdoc},
     volume = {36},
     year = {1980},
     zbl = {0471.65040},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1980__36_132708/}
}