Richt, J. A., Lager, K. M., Janke, B. H., Woods, R. D., Webster, R. G., & Webby, R. J. (2003). Pathogenic and Antigenic Properties of Phylogenetically Distinct Reassortant H3N2 Swine Influenza Viruses Cocirculating in the United States. American Society for Microbiology.

Richt, Jürgen A., Kelly M. Lager, Bruce H. Janke, Roger D. Woods, Robert G. Webster, and Richard J. Webby. Pathogenic and Antigenic Properties of Phylogenetically Distinct Reassortant H3N2 Swine Influenza Viruses Cocirculating in the United States. American Society for Microbiology, 2003.

Richt, Jürgen A., et al. Pathogenic and Antigenic Properties of Phylogenetically Distinct Reassortant H3N2 Swine Influenza Viruses Cocirculating in the United States. American Society for Microbiology, 2003.