1. A need to develop ecological approaches;Liebman;Ecological Applications,1993
2. Mathematical ecology of plant species competition;Pakes,1990
3. Weed Crop System Modeling For Optimizing Weed Control;Sakai,1992
4. Self- thining overcrowded pure stands under cultivated and natural conditions;Yoda,1963
5. Competition in experimental populations of weeds with emphasis on the regulation of population size;Palmblad,1967