@article{optimalalgorithmsforconvexnested,
  title = {Optimal Algorithms for Convex Nested Stochastic Composite Optimization},
  author = {Zhe Zhang and Guanghui Lan},
  year = {2020},
  eprint = {2011.10076},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2011.10076v5},
}