Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Toshiki Koga and Yoshinori Takano and Yasuhiro Oba and Hiroshi Naraoka and Naohiko Ohkouchi,Abundant extraterrestrial purine nucleobases in the Murchison meteorite: Implications for a unified mechanism for purine synthesis in carbonaceous chondrite parent bodies,Geochimica et Cosmochimica Acta,0016-7037,Elsevier BV,2024-01,365,,253-265,https://cir.nii.ac.jp/crid/1360021391857928064,https://doi.org/10.1016/j.gca.2023.10.024