Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) S. Kit and H. Qavi and J. D. Gaines and Peggy Billingsley and S. McConnell,Thymidine kinase-negative bovine herpesvirus type 1 mutant is stable and highly attenuated in calves,Archives of Virology,0304-8608,Springer Science and Business Media LLC,1985-03,86,1-2,63-83,https://cir.nii.ac.jp/crid/1360292618561298688,https://doi.org/10.1007/bf01314114