1. Streptococcal infection in young pigs;Elliott, S.D.;Journal of Hygiene,1966
2. Studies on piglet mortality 1. Streptococcal meningitis and arthritis;Field, H.I.; Buntain, D.; Done, J.T.;Veterinary Record,1954
3. Meningitis caused by group R haemolytic streptococci;Hickling, P.; Cormack, F.C.V.;British Medical Journal,1976
4. Haemolytic streptococcus group R infection;Koldkjaer, O.; Nielsen, G.;British Medical Journal,1972
5. Septicaemic infection in pigs caused by haemolytic streptococci of new Lancefield groups;Moor, C.E.de;Antonie van Leeuwenhoek, Journal of Microbiology and Serology,1963