Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) A. I. Rauf and Masao Fukushima,Globally Convergent BFGS Method for Nonsmooth Convex Optimization1,Journal of Optimization Theory and Applications,0022-3239,Springer Science and Business Media LLC,2000-03-01,104,,539-558,https://cir.nii.ac.jp/crid/1874242817271608320,https://doi.org/10.1023/a:1004633524446