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| Russian | English |
| авторы заявляют об отсутствии конфликта интересов | the authors declare that they have no conflict of interest. (If there are no competing interests in their submitted manuscripts, authors should state: "The authors declare that they have no conflict of interest.") |
| по Харлэнду и авторам | Harland et al (справочник "Геологическая шкала времени", университет в Кембридже Petr Krap) |