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- cupwing, and pygmy cupwing. It was first described by Jochen Martens and Siegfried Eck in 1991, having been identified as a separate species based on differences...7 KB (703 words) - 19:50, 17 February 2023
- University of New York. Axel Gebauer, Axel; Jürgen Jacob; Martin Kaiser; Siegfried Eck (2004). "Chemistry of the uropygial gland secretion of Hume's ground...14 KB (1,465 words) - 07:39, 28 March 2024
- II (?–1048) Alfred Delp (1907–1945) Eugen Drewermann (born 1940) Johann Eck (1486–1543) Anne Catherine Emmerich (1774–1824) Matthias Faber (1586–1653)...105 KB (11,310 words) - 01:32, 13 May 2024
- 52 (Supplement): 429–434. Martens, Jochen; Tietze, Dieter Thomas; Eck, Siegfried; Veith, Michael (2004). "Radiation and species limits in the Asian Pallas's...27 KB (2,982 words) - 07:08, 13 December 2022
- Retrieved 12 November 2021. Dekker, René W. R. J.; Dickinson, Edward C.; Eck, Siegfried; Somadikarta, Soekarja (2000). "Systematic notes on Asian birds. 3....33 KB (3,725 words) - 19:08, 9 March 2024
- Bensley. pp. 167–68. ISBN 978-0-905418-96-4. Dickinson, Edward C.; Eck, Siegfried; Christopher M. Milensky (2002). "Systematic notes on Asian birds. 31...67 KB (7,600 words) - 17:55, 19 May 2024
- Retrieved 12 November 2021. Dekker, René W. R. J.; Dickinson, Edward C.; Eck, Siegfried; Somadikarta, Soekarja (2000). "Systematic notes on Asian birds. 3....31 KB (3,231 words) - 11:52, 26 April 2024
- doi:10.1111/j.1600-0587.2010.06167.x. Packert, Martin; Martens, Jochen; Eck, Siegfried; Nazarenko, Alexander A.; Valchuk, Olga P.; Petri, Bernd & Veith, Michael...91 KB (9,630 words) - 22:27, 27 December 2023