{
  "source_id": "10.3176/chem.1978.1.04",
  "archive": "Estonian Academy Publishers archive (kirj.ee)",
  "publisher": "Estonian Academy Publishers",
  "journal": "Proceedings of the Academy of Sciences of the Estonian SSR. Chemistry",
  "journal_original": "Известия Академии наук Эстонской ССР. Химия",
  "year": 1978,
  "volume": "27",
  "issue": "1",
  "pages": "21–25",
  "first_page": 21,
  "last_page": 25,
  "title": "ОБ АЗОТЕ КЕРОГЕНА ГРАПТОЛИТОВОГО АРГИЛЛИТА СЕВЕРНОЙ ЭСТОНИИ",
  "title_en": null,
  "authors": [
    "Lia Nappa",
    "Aleksandra Fomina",
    "E. Kivimägi†",
    "Maret Kuusik"
  ],
  "language": "Russian",
  "language_evidence": "crossref language=ru + Cyrillic (Russian) title",
  "doi": "10.3176/chem.1978.1.04",
  "landing_page": "https://kirj.ee/proceedings-of-the-academy-of-sciences-of-the-estonian-ssr-chemistry/?filter[year]=1978&filter[issue]=900&filter[publication]=7622",
  "pdf_url": "https://kirj.ee/wp-content/plugins/kirj/pub/chem-1-1978-21-25_20230406183534.pdf",
  "license": "CC BY 4.0",
  "license_url": "http://creativecommons.org/licenses/by/4.0/",
  "license_evidence": "crossref license field (publisher policy page says CC BY-NC 4.0; see notes)",
  "license_notice": "Translated from Russian. Original: Lia Nappa, Aleksandra Fomina, E. Kivimägi†, Maret Kuusik, “Об азоте керогена граптолитового аргиллита северной эстонии”, Proceedings of the Academy of Sciences of the Estonian SSR. Chemistry, 1978, vol. 27 no. 1, pp. 21–25, https://doi.org/10.3176/chem.1978.1.04. Published by Estonian Academy Publishers; license CC BY 4.0 (http://creativecommons.org/licenses/by/4.0/) as deposited with Crossref by the publisher (the publisher's policy page names CC BY-NC 4.0). Changes: translated into English.",
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  "record_url": "https://api.crossref.org/works/10.3176/chem.1978.1.04",
  "record_source": "harvested 2026-10-14 from the publisher's API"
}