ARCHIVES OF VIROLOGY, vol. 144, no. 2, page. 329 - 343, 1999-01
MOLECULES AND CELLS, vol. 7, no. 5, page. 661 - 667, 1997-10-31
VIROLOGY, vol. 226, no. 2, page. 318 - 326, 1996-12-15
MOLECULES AND CELLS, vol. 6, no. 2, page. 183 - 189, 1996-04-30
JOURNAL OF GENERAL VIROLOGY, vol. 76, no. 4, page. 985 - 993, 1995-04