@article{Yada2021first,
  author = {Yada and Abe and Okada and others},
  title = {Preliminary analysis of the Hayabusa2 samples returned from C-type asteroid Ryugu},
  journal = {Nature Astronomy},
  year = {2021},
  doi = {10.1038/s41550-021-01550-6},
  url = {https://doi.org/10.1038/s41550-021-01550-6}
}

@article{Oba2023uracil,
  author = {Oba and Koga and Takano and others},
  title = {Uracil in the carbonaceous asteroid (162173) Ryugu},
  journal = {Nature Communications},
  year = {2023},
  doi = {10.1038/s41467-023-36904-3},
  url = {https://doi.org/10.1038/s41467-023-36904-3}
}