Blum, U. (2011). Plant-plant allelopathic interactions: Phenolic acids, cover crops and weed emergence. Springer.
Lua i Stíl Chicago (17ú heag.)Blum, Udo. Plant-plant Allelopathic Interactions: Phenolic Acids, Cover Crops and Weed Emergence. Dordrecht, New York: Springer, 2011.
Lua MLA (9ú heag.)Blum, Udo. Plant-plant Allelopathic Interactions: Phenolic Acids, Cover Crops and Weed Emergence. Springer, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.