Olson, S.L. (1981). «The generic allocation of Ibis pagana Milne-Edwards, with a review of fossil ibises (Aves: Threskiornithidae)». Journal of Vertebrate Paleontology1 (2): 165-170. doi:10.1080/02724634.1981.10011888.
Chesser, R.Terry; Yeung, Carol K.L.; Yao, Cheng-Te; Tians, Xiu-Hua; Li Shou-Hsien (2010). «Molecular phylogeny of the spoonbills (Aves: Threskiornithidae) based on mitochondrial DNA». Zootaxa2603 (2603): 53-60. doi:10.11646/zootaxa.2603.1.2. ISSN1175-5326.
worldcat.org
Chesser, R.Terry; Yeung, Carol K.L.; Yao, Cheng-Te; Tians, Xiu-Hua; Li Shou-Hsien (2010). «Molecular phylogeny of the spoonbills (Aves: Threskiornithidae) based on mitochondrial DNA». Zootaxa2603 (2603): 53-60. doi:10.11646/zootaxa.2603.1.2. ISSN1175-5326.