@article{calliopeattsbasednarratedebookcreatorens,
  title = {Calliope: A TTS-based Narrated E-book Creator Ensuring Exact Synchronization, Privacy, and Layout Fidelity},
  author = {Hugo L. Hammer and Vajira Thambawita and Pål Halvorsen},
  year = {2026},
  eprint = {2602.10735},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2602.10735},
}