João-de-barba-grisalha (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "João-de-barba-grisalha" in Portuguese language version.

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doi.org

dx.doi.org

BirdLife International. 2018. Synallaxis kollari (amended version of 2016 assessment). The IUCN Red List of Threatened Species 2018: e.T22702393A128222975. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22702393A128222975.en. Acessado em 16 de fevereiro de 2023.