Fry, H. (2001). 〈European Roller (Coracius garrulus〉. del Hoyo, J.; Elliott, A.; Sargatal, J. (편집). 《Handbook of the Birds of the World》. ((6: Mousebirds to Hornbills)). Barcelona, Spain: Lynx Edicions. 373쪽. ISBN978-84-87334-30-6.지원되지 않는 변수 무시됨: |chapter-url-access= (도움말)
Johansson, U. S.; Irestedt, M.; Qu, Y.; Ericson, P. G. P. (2018). “Phylogenetic relationships of rollers (Coraciidae) based on complete mitochondrial genomes and fifteen nuclear genes”. 《Molecular Phylogenetics and Evolution》 126: 17–22. Bibcode:2018MolPE.126...17J. doi:10.1016/j.ympev.2018.03.030. PMID29631051. S2CID5011292.
Johansson, U. S.; Irestedt, M.; Qu, Y.; Ericson, P. G. P. (2018). “Phylogenetic relationships of rollers (Coraciidae) based on complete mitochondrial genomes and fifteen nuclear genes”. 《Molecular Phylogenetics and Evolution》 126: 17–22. Bibcode:2018MolPE.126...17J. doi:10.1016/j.ympev.2018.03.030. PMID29631051. S2CID5011292.
Johansson, U. S.; Irestedt, M.; Qu, Y.; Ericson, P. G. P. (2018). “Phylogenetic relationships of rollers (Coraciidae) based on complete mitochondrial genomes and fifteen nuclear genes”. 《Molecular Phylogenetics and Evolution》 126: 17–22. Bibcode:2018MolPE.126...17J. doi:10.1016/j.ympev.2018.03.030. PMID29631051. S2CID5011292.
Johansson, U. S.; Irestedt, M.; Qu, Y.; Ericson, P. G. P. (2018). “Phylogenetic relationships of rollers (Coraciidae) based on complete mitochondrial genomes and fifteen nuclear genes”. 《Molecular Phylogenetics and Evolution》 126: 17–22. Bibcode:2018MolPE.126...17J. doi:10.1016/j.ympev.2018.03.030. PMID29631051. S2CID5011292.