@article{JMLR:v22:17-679,
  author  = {Gilles Blanchard and Aniket Anand Deshmukh and Urun Dogan and Gyemin Lee and Clayton Scott},
  title   = {Domain Generalization by Marginal Transfer Learning},
  journal = {Journal of Machine Learning Research},
  year    = {2021},
  volume  = {22},
  number  = {2},
  pages   = {1--55},
  url     = {http://jmlr.org/papers/v22/17-679.html}
}