%0 Journal Article %A van der Veen, J. %T Announcement %D 1976 %J Journal of General Virology, %V 33 %N 3 %P NP-NP %@ 1465-2099 %R https://doi.org/10.1099/0022-1317-33-3-NP-a %I Microbiology Society, %X %U https://www.microbiologyresearch.org/content/journal/jgv/10.1099/0022-1317-33-3-NP-a