@article{aggregatingfrommultipletargetshifted,
  title = {Aggregating From Multiple Target-Shifted Sources},
  author = {Changjian Shui and Zijian Li and Jiaqi Li and Christian Gagné and Charles Ling and Boyu Wang},
  year = {2021},
  eprint = {2105.04051},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2105.04051v2},
}