1. 1. A. P. Waterson, and R. P. Hanson (1963 ) inNewcastle Disease Virus () pp.119 -132 , The University of Wisconsin Press, Madison.
2. Fluorescent antibody studies with NDV-infected cell systems
3. 3. C. Scholtissek, R. Drzeniek, R. Rott, and H. B. Levy (1969 ) inThe Biochemistry of Viruses () pp.219 -258 . Marcel Dekker, New York and London.
4. Amino Acid Metabolism in Mammalian Cell Cultures