1. Medieval herbs end a long sleep;Natl. Geogr.,1997
2. Weed Science Society of America-Origin and Evolution-The First 50 Years;Appleby,2006
3. An annotated further-reading of weeds as reservoirs for organisms affecting crops. II.a;Bendixen,1981
4. Weed seed destruction by arthropods and rodents in low-input soybean agroecosystems;Brust;Am. Alternat. Agricul.,1988
5. Quackgrass;Buchholtz;Proc. N. Cent. Weed Contr. Conf.,1958