{
  "source_id": "10.3176/phys.math.1970.1.15",
  "archive": "Estonian Academy Publishers archive (kirj.ee)",
  "publisher": "Estonian Academy Publishers",
  "journal": "Proceedings of the Academy of Sciences of the Estonian SSR. Physics. Mathematics",
  "journal_original": "Известия Академии наук Эстонской ССР. Физика. Математика",
  "year": 1970,
  "volume": "19",
  "issue": "1",
  "pages": "113–115",
  "first_page": 113,
  "last_page": 115,
  "title": "ОБ ОПТИМАЛЬНОМ ПЛАНИРОВАНИИ РЕГРЕССИОННЫХ ЭКСПЕРИМЕНТОВ ТРЕТЬЕЙ СТЕПЕНИ В СФЕРЕ",
  "title_en": null,
  "authors": [
    "Ivar Petersen",
    "K. Pukk"
  ],
  "language": "Russian",
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  "doi": "10.3176/phys.math.1970.1.15",
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  "license": "CC BY 4.0",
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  "license_notice": "Translated from Russian. Original: Ivar Petersen, K. Pukk, “Об оптимальном планировании регрессионных экспериментов третьей степени в сфере”, Proceedings of the Academy of Sciences of the Estonian SSR. Physics. Mathematics, 1970, vol. 19 no. 1, pp. 113–115, https://doi.org/10.3176/phys.math.1970.1.15. 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_source": "harvested 2026-10-14 from the publisher's API"
}