* '''Thiemann, A.K., Bell, N. J. (2001). ‘The Peculiarities of Donkey Respiratory Disease’, ''Equine Respiratory Diseases'', Lekeux, P. (ed). International Veterinary Information Service, Ithaca, New York. http://www.ivis.org/special_books/Lekeux/bell/chapter_frm.asp?LA=1''' | * '''Thiemann, A.K., Bell, N. J. (2001). ‘The Peculiarities of Donkey Respiratory Disease’, ''Equine Respiratory Diseases'', Lekeux, P. (ed). International Veterinary Information Service, Ithaca, New York. http://www.ivis.org/special_books/Lekeux/bell/chapter_frm.asp?LA=1''' |