Harper, D., Hammarlund, E., Topper, T., Nielsen, A., Rasmussen, J., Park, T., & Smith, M. (2019). The Sirius Passet Lagerstätte of North Greenland: A remote window on the Cambrian Explosion. Geological Society of London.

Harper, D., E. Hammarlund, T. Topper, A. Nielsen, J. Rasmussen, T. Park, and M. Smith. The Sirius Passet Lagerstätte of North Greenland: A Remote Window on the Cambrian Explosion. Geological Society of London, 2019.

Harper, D., et al. The Sirius Passet Lagerstätte of North Greenland: A Remote Window on the Cambrian Explosion. Geological Society of London, 2019.