@misc{VuKochXu2024,
  author    = {Thi Huong Vu and Thorsten Koch and Hong-Kun Xu},
  title     = {The gradient projection method: Is the Polyak adaptive stepsize rule optimal?},
  institution = {Digital Data and Information for Society, Science, and Culture},
  year        = {2024},
  note        = {under review}
}