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  1. By: Rubenstein, Jesse - Hulme, Philip - Rolston, M. Philip - Stewart, Alan - Hampton, John
    Type: Article
    In: NeoBiota
    Volume: 85
    Date: 2023
    Page Range: 167--195
    Publication Info: Pensoft Publishers 2023
    Subjects: Analytical purity  Herbicides  Lolium perenne  perennial ryegrass  seed lots  Trifolium repens  weed seeds  White clover
  2. By: Wilson, Claire - Castro, Karen - Thurston, Graham - Sissons, Andrea
    Type: Article
    In: NeoBiota
    Volume: 30
    Date: 2016
    Page Range: 49-74
    Publication Info: Pensoft Publishers 2016
    Subjects: Canada  contaminants  Grain  Imports  Pathway risk analysis  Pest risk assessment  screenings  weed seeds