Tråvén, M. (2000). Winter dysentery caused by bovine coronavirus: No rule without an exception : diagnostics, clinical picture, epidemiology and herd immunity. Swedish University of Agricultural Sciences.
Chicago-referens (17:e uppl.)Tråvén, Madeleine. Winter Dysentery Caused by Bovine Coronavirus: No Rule Without an Exception : Diagnostics, Clinical Picture, Epidemiology and Herd Immunity. Uppsala: Swedish University of Agricultural Sciences, 2000.
MLA-referens (8:e uppl.)Tråvén, Madeleine. Winter Dysentery Caused by Bovine Coronavirus: No Rule Without an Exception : Diagnostics, Clinical Picture, Epidemiology and Herd Immunity. Swedish University of Agricultural Sciences, 2000.
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