Template:Hou & Bergström, 1991
- Hou X.-g. & Bergström, J. 1991. The arthropods of the Lower Cambrian Chengjiang fauna, with relationships and evolutionary significance. Pp. 179–187. In: Simonetta, A.M. & Conway Morris, S. (eds.) The early evolution of Metazoa and the significance of problematic taxa. Proceedings of an International Syposium held at the University of Camerino 27-31 March 1989. Cambridge University Press, Cambridge.