@article{innovativeuseofxrayradiographyinthe,
  title = {Innovative use of X-ray radiography in the study of daguerreotypes: identification of hallmarks},
  author = {Sara Barrio and Laura Alba and Clara M. Prieto},
  year = {2023},
  eprint = {2307.00001},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2307.00001v1},
}