Woodward, C. G., & Smith, H. (1975). Production of defective interfering virus in the brains of mice by an avirulent, in contrast with a virulent, strain of Semliki forest virus. Blackwell Publishing|1.

Woodward, C. G., and H. Smith. Production of Defective Interfering Virus in the Brains of Mice By an Avirulent, in Contrast With a Virulent, Strain of Semliki Forest Virus. Blackwell Publishing|1, 1975.

Woodward, C. G., and H. Smith. Production of Defective Interfering Virus in the Brains of Mice By an Avirulent, in Contrast With a Virulent, Strain of Semliki Forest Virus. Blackwell Publishing|1, 1975.