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Wolf, Hans J. and zur Hausen, H. and Klein, G. and Becker, V. and Henle, G. and Henle, W. (1975) Attempts to detect virus-specific DNA sequences in human tumors. III. Epstein-Barr viral DNA in non-lymphoid nasopharyngeal carcinoma cells. Medical microbiology and immunology 161 (1), pp. 15-21.
Wolf, Hans J. and zur Hausen, H. and Becker, V. (1973) EB viral genomes in epithelial nasopharyngeal carcinoma cells. Nature. New biology 244 (138), pp. 245-247.