Crossref Citations

1. Biological control of prickly pear, Opuntia ficusindica (Cactaceae), in South Africa
H.G. Zimmermann, V.C. Moran
Agriculture, Ecosystems & Environment  vol: 37  issue: 1-3  first page: 29  year: 1991  
doi: 10.1016/0167-8809(91)90137-M