JOHANSSON, Ulf S.; ERICSON, Per G. P. Molecular support for a sister group relationship between Pici and Galbulae (Piciformes sensu Wetmore 1960). Journal of Avian Biology. 2003-06, roč. 34, čís. 2, s. 185–197. Dostupné online [cit. 2022-03-13]. DOI10.1034/j.1600-048X.2003.03103.x. (anglicky)
ERICSON, Per G.P; ANDERSON, Cajsa L; BRITTON, Tom. Diversification of Neoaves: integration of molecular sequence data and fossils. Biology Letters. 2006-12-22, roč. 2, čís. 4, s. 543–547. Dostupné online [cit. 2022-03-13]. ISSN1744-9561. DOI10.1098/rsbl.2006.0523. (anglicky)
royalsocietypublishing.org
ERICSON, Per G.P; ANDERSON, Cajsa L; BRITTON, Tom. Diversification of Neoaves: integration of molecular sequence data and fossils. Biology Letters. 2006-12-22, roč. 2, čís. 4, s. 543–547. Dostupné online [cit. 2022-03-13]. ISSN1744-9561. DOI10.1098/rsbl.2006.0523. (anglicky)
wiley.com
doi.wiley.com
JOHANSSON, Ulf S.; ERICSON, Per G. P. Molecular support for a sister group relationship between Pici and Galbulae (Piciformes sensu Wetmore 1960). Journal of Avian Biology. 2003-06, roč. 34, čís. 2, s. 185–197. Dostupné online [cit. 2022-03-13]. DOI10.1034/j.1600-048X.2003.03103.x. (anglicky)
worldcat.org
ERICSON, Per G.P; ANDERSON, Cajsa L; BRITTON, Tom. Diversification of Neoaves: integration of molecular sequence data and fossils. Biology Letters. 2006-12-22, roč. 2, čís. 4, s. 543–547. Dostupné online [cit. 2022-03-13]. ISSN1744-9561. DOI10.1098/rsbl.2006.0523. (anglicky)