Foth, C.; et al. (Julho de 2014). «New specimen of Archaeopteryx provides insights into the evolution of pennaceous feathers». Nature. 511: 79–82. Bibcode:2014Natur.511...79F. doi:10.1038/nature13467
Foth, C.; et al. (Julho de 2014). «New specimen of Archaeopteryx provides insights into the evolution of pennaceous feathers». Nature. 511: 79–82. Bibcode:2014Natur.511...79F. doi:10.1038/nature13467