*{{cite journal ref-publicació|quotes=no |authorautor=P. Funch i R. M. Christensen |yearany=1995 |títol=Cycliophora is a new phylum with affinities to Entoprocta and Ectoprocta |journalpublicació=[[Nature]] |volumevolum=378 |pagespàgines=711–714 |url=http://www.nature.com/nature/journal/v378/n6558/abs/378711a0.html |id={{doi|10.1038/378711a0}}}}
*{{cite journal ref-publicació|quotes=no |authorautor=M. Obst, P. Funch i G. Giribet |yearany=2005 |títol= Hidden diversity and host specificity in cycliophorans: a phylogeographic analysis along the North Atlantic and Mediterranean Sea |journalpublicació=[[Molecular Ecology]] |volumevolum=14 |pagespàgines=4427–4440 |url=http://www.blackwell-synergy.com/doi/abs/10.1111/j.1365-294X.2005.02752.x |id={{doi|10.1111/j.1365-294X.2005.02752.x}}}}
