Arnaiz-Villena, A., Moscoso, J., Ruiz-del-Valle, V., Gonzalez, J., Reguera, R., Wink, M., I. Serrano-Vela, J. 2007. Bayesian phylogeny of Fringillinae birds: status of the singular African oriole finch Linurgus olivaceus and evolution and heterogeneity of the genus Carpodacus. Acta Zoologica Sinica, 53 (5):826 - 834. PDF fulltext
Zamora, J., Moscoso, J., Ruiz-del-Valle, V., Lowy, E., Serrano-Vela, J.I., Ira-Cachafeiro, J.I., Arnaiz-Villena, A. 2006. Conjoint mitochondrial phylogenetic trees for canaries (Serinus spp.) and goldfinches (Carduelis spp.) show several specific polytomies. Ardeola, 53: 1 - 17.
Zamora, J., Lowy, E., Ruiz-del-Valle, V., Moscoso, J., Serrano-Vela, J.I., Rivero-de-Aguilar, J., Arnaiz-Villena, A. 2006. Rhodopechys obsoleta (desert finch): a pale ancestor of greenfinches (Carduelis spp.) according to molecular phylogeny. J Ornithol, 147: 448-456.
Kirwan, G.M., & Grieve, A. 2007. Studies of Socotran birds II. One, two or three species: towards a rational taxonomy for the Golden-winged Grosbeak Rhynchostruthus socotranus. Bulletin of the African Bird Club, Volume 14.2: pp.159-169.