@article{snowballiterativemodelevolutionand,
  title = {Snowball: Iterative Model Evolution and Confident Sample Discovery for Semi-Supervised Learning on Very Small Labeled Datasets},
  author = {Yang Li and Jianhe Yuan and Zhiqun Zhao and Hao Sun and Zhihai He},
  year = {2019},
  eprint = {1909.01542},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1909.01542v1},
}