@unpublished{ Hosseini.Huang.Yousefpour:2016, author = {Hosseini, S. and Huang, W. and Yousefpour, R.}, title = {Line search algorithms for locally {L}ipschitz functions on {R}iemannian manifolds}, year = {2016}, month = {nov}, annote = {preprint}, pdf = {http://neitzel.ins.uni-bonn.de/research/pub/hosseini/RBFGS.pdf} , note = {INS Preprint No. 1626. Revised version, August 2017}, inspreprintnum= {1626} }