9. Ohder, H., Lund, L. J. and Whiteland, A. P. Observations on the growth and Development of Bluetongue, 

 Nairobi Sheep Disease, and Rift Valley Fever Viruses by Fluorescent Antibody Technique and Titration in a 

 Tissue Culture System. Arch. ges. Virusforsch 29 (1971): 127-138. 



10. Pini, A., Coackley, W. and Ohder, H. Concentration of Bluetongue Virus in Fxperimentallv Infected Sheep and 

 Virus Identification by Immune Fluorescence Technique. Arch. ges. Virusforsch 18 (1966): 385-390. 



11. . The Adverse Effect of Some Calf Sera in the Isolation of Bluetongue Virus in Tissue 



Culture. Arch. ges. Virusforsch 18 (1966): 88-95. 



12. Ruckerbauer, G. M., Gray, D. P., Girard, A., Bannister, G. L., and Boulanger, P. Studies on Bluetongue. 

 V. Detection of the Virus in Infected Materials by Immunofluorescence. Canad. J. Comp. Med. & Vet. Sci. 31, 

 (July, 1967): 175-181. 



13. Stewart, W. C, Carbrey, E. A. and Kresse, J. I. Detection of Pseudorabies Virus by Immunofluorescence. 

 JAVMA 151 (Sept. 15, 1967): 747-751. 



14. Thomas, F. C. Personal communication. Animal Diseases Research Institute, Hull, Quebec, Canada. 



