David et al. 2000

David, B. and Lefebvre, B. and Mooi, R. and Parsley, R. 2000. Are homalozoans echinoderms ? An answer from the extraxial-axial theory. Paleobiology 26. 529–555.

@article{jacquesestimative-david00homalozoan,
  author  = {David, B. and Lefebvre, B. and Mooi, R. and Parsley, R.},
  journal = {Paleobiology},
  pages   = {529–555},
  title   = {Are homalozoans echinoderms ? An answer from the extraxial-axial theory},
  volume  = {26},
  year    = {2000}
}