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canids.org
Alvares, F.; Bogdanowicz, W.; Campbell, L.A.D.; Godinho, R.; Hatlauf, J.; Jhala, Y.V.; Kitchener, A. C.; Koepfli, K.-P.; Krofel, M.; Moehlman, P. D.; Senn, H.; Sillero-Zubiri, C.; Viranta, S.; Werhahn, G. Old World Canis spp. with taxonomic ambiguity: Workshop conclusions and recommendations(PDF) (报告). Vairão, Portugal: IUCN/SSC Canid Specialist Group, Centro de Investigação em Biodiversidade e Recursos Genéticos. 28th–30th May 2019 [2020-03-06]. (原始内容存档(PDF)于2021-03-08).请检查|date=中的日期值 (帮助)
Alvares, F.; Bogdanowicz, W.; Campbell, L.A.D.; Godinho, R.; Hatlauf, J.; Jhala, Y.V.; Kitchener, A. C.; Koepfli, K.-P.; Krofel, M.; Moehlman, P. D.; Senn, H.; Sillero-Zubiri, C.; Viranta, S.; Werhahn, G. Old World Canis spp. with taxonomic ambiguity: Workshop conclusions and recommendations(PDF) (报告). Vairão, Portugal: IUCN/SSC Canid Specialist Group, Centro de Investigação em Biodiversidade e Recursos Genéticos. 28th–30th May 2019 [2020-03-06]. (原始内容存档(PDF)于2021-03-08).请检查|date=中的日期值 (帮助)