@Article{ Hosseini.Uschmajew:2017, author = {Hosseini, Seyedehsomayeh and Uschmajew, Andr\'e}, title = {A {R}iemannian gradient sampling algorithm for nonsmooth optimization on manifolds}, journal = {SIAM J. Optim.}, fjournal = {SIAM Journal on Optimization}, volume = {27}, year = {2017}, number = {1}, pages = {173--189}, annote = {journal}, doi = {10.1137/16M1069298}, pdf = {http://neitzel.ins.uni-bonn.de/research/pub/hosseini/RiemannianGS.pdf} }