1. Some limitations of weed blocontrol in tropical crop ecosystems in Colombia;Altieri,1978
2. Conflicting Interests and the biological control of weeds;Andres,1981
3. Biological control in agroecosystems;Batra;Science,1982
4. Grass reproduction;Berg,1972
5. Antifeedant properties of seedling grasses;Bernays;Symp. Biol. Hung,1976