RT Journal Article SR Electronic(1) A1 Fox, Sylvia M. A1 Birnie, G. D. A1 Martin, E. M. A1 Sonnabend, J. A.YR 1967 T1 Isolation of Polyoma Virus and Semliki Forest Virus from Tissue Culture Fluid by Continuous Flow Zonal Ultracentrifugation JF Journal of General Virology, VO 1 IS 4 SP 577 OP 580 DO https://doi.org/10.1099/0022-1317-1-4-577 PB Microbiology Society, SN 1465-2099, AB , UL https://www.microbiologyresearch.org/content/journal/jgv/10.1099/0022-1317-1-4-577