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138 Болезни птиц 6. Pathogenicy, transmissibility, and tissue distribution of avian pneumovirus in turkey poults / A.N. Alkhalaf, L.A. Ward, R.N. Dearth, Y.M. Saif // Avian Dis. – 2002. – Vol. 46, № 3. – P. 650-659. 7. Presence of avian pneumovirus type A in continental Europe during the 1980s / H.M. Hafez, M. Hess, C. Prusas [et. al.] // J. Vet. Med. B. – 2000. – Vol. 47, № 8. – P. 629-633. Электронная Научная СельскоХозяйственная Библиотека