@article{VerginFreierGzik2004,
  author    = {Vergin, Anika and Freier, B. and Gzik, Axel},
  title     = {Investigations on effects of plant strengthening products to tri-trophic system field bean (Vicia faba (L.)) - black bean aphid (Aphis fabae Scop.) - lacewing larva (Chrysoperla carnea Steph.)},
  year      = {2004},
  language  = {en}
}