@misc{orgprints1437,
           title = {The combined effect of various GM-contamination sources in a case study of oilseed rape},
          author = {Christian Damgaard and G\"osta Kjellsson and Christian Haldrup},
            year = {2003},
         journal = {unpublished},
        keywords = {GM crops, co-existence, sources of contamination, tolerance limits},
             url = {http://orgprints.org/1437/},
        abstract = {An abstract is being prepared}
}