@article{HosseiniUschmajew2019,
  author    = {Seyedehsomayeh Hosseini and Andr{\´e} Uschmajew},
  title     = {A gradient sampling method on algebraic varieties and application to nonsmooth low-rank optimization},
  journal   = {SIAM Journal on Optimization},
  volume    = {29},
  number    = {4},
  pages     = {2853 -- 2880},
  doi       = {10.1137/17m1153571},
  year      = {2019},
}