Snijder, E. J., den Boon, J. A., Bredenbeek, P. J., Horzinek, M. C., Rijnbrand, R., & Spaan, W. J. (1990). The carboxyl-terminal part of the putative Berne virus polymerase is expressed by ribosomal frameshifting and contains sequence motifs which indicate that toro- and coronaviruses are evolutionarily related.

Snijder, E J., J A. den Boon, P J. Bredenbeek, M C. Horzinek, R. Rijnbrand, and W J. Spaan. The Carboxyl-terminal Part of the Putative Berne Virus Polymerase Is Expressed By Ribosomal Frameshifting and Contains Sequence Motifs Which Indicate That Toro- and Coronaviruses Are Evolutionarily Related. 1990.

Snijder, E J., et al. The Carboxyl-terminal Part of the Putative Berne Virus Polymerase Is Expressed By Ribosomal Frameshifting and Contains Sequence Motifs Which Indicate That Toro- and Coronaviruses Are Evolutionarily Related. 1990.