An Electron Microscopic Study of Haemagglutinating Encephalomyelitis Virus of Pigs Clarke, J. K. and McFerran, J. B.,, 13, 339-344 (1971), doi = https://doi.org/10.1099/0022-1317-13-2-339, publicationName = Microbiology Society, issn = 0022-1317, abstract= , language=, type=