Graaf, A., Ulrich, R., Maksimov, P., Scheibner, D., Koethe, S., Abdelwhab, E. M., . . . Harder, T. (2018). A viral race for primacy: Co-infection of a natural pair of low and highly pathogenic H7N7 avian influenza viruses in chickens and embryonated chicken eggs. Emerg Microbes Infect.

Graaf, Annika, Reiner Ulrich, Pavlo Maksimov, David Scheibner, Susanne Koethe, Elsayed M. Abdelwhab, Thomas C. Mettenleiter, Martin Beer, e Timm Harder. "A Viral Race for Primacy: Co-infection of a Natural Pair of Low and Highly Pathogenic H7N7 Avian Influenza Viruses in Chickens and Embryonated Chicken Eggs." Emerg Microbes Infect 2018.

Graaf, Annika, et al. "A Viral Race for Primacy: Co-infection of a Natural Pair of Low and Highly Pathogenic H7N7 Avian Influenza Viruses in Chickens and Embryonated Chicken Eggs." Emerg Microbes Infect 2018.