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{'id': 'https://openalex.org/W1998494818', 'doi': 'https://doi.org/10.1371/journal.pbio.1001850', 'title': 'A Unified Classification of Alien Species Based on the Magnitude of their Environmental Impacts', 'display_name': 'A Unified Classification of Alien Species Based on the Magnitude of their Environmental Impacts', 'publication_year': 2014, 'publication_date': '2014-05-06', 'ids': {'openalex': 'https://openalex.org/W1998494818', 'doi': 'https://doi.org/10.1371/journal.pbio.1001850', 'mag': '1998494818', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/24802715', 'pmcid': 'https://www.ncbi.nlm.nih.gov/pmc/articles/4011680'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1371/journal.pbio.1001850', 'pdf_url': 'https://journals.plos.org/plosbiology/article/file?id=10.1371/journal.pbio.1001850&type=printable', 'source': {'id': 'https://openalex.org/S154343897', 'display_name': 'PLoS Biology', 'issn_l': '1544-9173', 'issn': ['1544-9173', '1545-7885'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310315706', 'host_organization_name': 'Public Library of Science', 'host_organization_lineage': ['https://openalex.org/P4310315706'], 'host_organization_lineage_names': ['Public Library of Science'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': True, 'oa_status': 'gold', 'oa_url': 'https://journals.plos.org/plosbiology/article/file?id=10.1371/journal.pbio.1001850&type=printable', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5000176084', 'display_name': 'Tim M. 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