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Wikipedia: nl.wikipedia.or ... https://nl.wikipedia.org/wiki/Crop_Protection
SUDOC: www.sudoc.fr/03 ... http://www.sudoc.fr/039311678
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q2535035
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Pubmed: pubmed.ncbi.nlm ... https://pubmed.ncbi.nlm.nih.gov/?term=%220261-2194%22%5BJournal%5D&sort=
