@article{theroleofmixedlanguagedocumentsformultil,
  title = {The Role of Mixed-Language Documents for Multilingual Large Language Model Pretraining},
  author = {Jiandong Shao and Raphael Tang and Crystina Zhang and Karin Sevegnani and Pontus Stenetorp and Jianfei Yang and Yao Lu},
  year = {2026},
  eprint = {2601.00364},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2601.00364},
}