Ordovisium Akhir (Indonesian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ordovisium Akhir" in Indonesian language version.

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doi.org

Delabroye, A.; Vecoli, M. (2010). "The end-Ordovician glaciation and the Hirnantian Stage: A global review and questions about the Late Ordovician event stratigraphy". Earth-Science Reviews. 98 (3–4): 269–282. Bibcode:2010ESRv...98..269D. doi:10.1016/j.earscirev.2009.10.010.

Delabroye, A.; Vecoli, M. (2010). "The end-Ordovician glaciation and the Hirnantian Stage: A global review and questions about the Late Ordovician event stratigraphy". Earth-Science Reviews. 98 (3–4): 269–282. Bibcode:2010ESRv...98..269D. doi:10.1016/j.earscirev.2009.10.010.

Bergström, Stig M.; S. C. Finney; Chen Xu; Christian Pålsson; Wang Zhi-hao; Yngve Grahn (2000). "A proposed global boundary stratotype for the base of the Upper Series of the Ordovician System: The Fågelsång section, Scania, southern Sweden" (PDF). Episodes. 23 (2): 102–109. Diakses tanggal 20 September 2012.