{
  "source_id": "10.3176/biol.1981.2.01",
  "archive": "Estonian Academy Publishers archive (kirj.ee)",
  "publisher": "Estonian Academy Publishers",
  "journal": "Proceedings of the Academy of Sciences of the Estonian SSR. Biology",
  "journal_original": "Известия Академии наук Эстонской ССР. Биология",
  "year": 1981,
  "volume": "30",
  "issue": "2",
  "pages": "89–99",
  "first_page": 89,
  "last_page": 99,
  "title": "РЕЖИМЫ ФУНКЦИОНИРОВАНИЯ ЛЕТАТЕЛЬНЫХ МЫШЦ У ПТИЦ В ПОЛЕТЕ (ТЕОРЕТИЧЕСКОЕ ПРЕДСТАВЛЕНИЕ)",
  "title_en": null,
  "authors": [
    "Jüri Keskpaik"
  ],
  "language": "Russian",
  "language_evidence": "Cyrillic (Russian) title as deposited; Crossref language=et is unreliable for this publisher (PDF spot-check: Cyrillic-titled items tagged en/de have Russian body text)",
  "doi": "10.3176/biol.1981.2.01",
  "landing_page": "https://kirj.ee/proceedings-of-the-academy-of-sciences-of-the-estonian-ssr-biology/?filter[year]=1981&filter[issue]=1037&filter[publication]=8992",
  "pdf_url": "https://kirj.ee/wp-content/plugins/kirj/pub/biol-2-1981-89-99_20230417173435.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: Jüri Keskpaik, “Режимы функционирования летательных мышц у птиц в полете (теоретическое представление)”, Proceedings of the Academy of Sciences of the Estonian SSR. Biology, 1981, vol. 30 no. 2, pp. 89–99, https://doi.org/10.3176/biol.1981.2.01. 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/biol.1981.2.01",
  "record_source": "harvested 2026-10-14 from the publisher's API"
}