Pienaar, Anna C.E.; Cilliers, J.A.; Bigalke, R.D.
(Published by the Government Printer, Pretoria., 1987)
A paramyxovirus was isolated from diseased pigeons, submitted to the Poultry Section of the Veterinary
Research Institute, Onderstepoort, for post-mortem examination. The mean death time for the isolates was
determined ...