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2. Bluetongue of sheep and cattle: Past, present and future;Bowen;J. Am. Vet. Med. Assoc.,1968
3. Isolation and identification of bluetongue virus: A serotype new to the U.S.;Collisson,1985
4. Comparison of bluetongue type 20 with certain viruses of the bluetongue and Eubenangee serological group of orbiviruses;Gorman;J. Gen. Virol.,1981
5. A comparison of bluetongue viruses isolated in Australia with exotic bluetongue virus serotypes;Gorman,1982