Schulz, K.C.A.; Van der Merwe, P.K.; Van Rensburg, P.J.J.; Swart, J.S.; Alexander, R.A.; Clark, R.; Sterne, M.; Louw, J.G.; Van der Reyden, D.; De Kock, V.E.
(Published by The Government Printer, Pretoria, South Africa., 1951)
It cannot be claimed that the observations recorded have led to specific information
as to the cause of the disease known as "lamkruis", yet valuable information
has been obtained which makes it clear that the factors ...
