Publication Information

{'id': 'https://openalex.org/W2145910104', 'doi': 'https://doi.org/10.1086/171447', 'title': 'Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. III - Further observations of NGC 5548 at optical wavelengths', 'display_name': 'Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. III - Further observations of NGC 5548 at optical wavelengths', 'publication_year': 1992, 'publication_date': '1992-06-01', 'ids': {'openalex': 'https://openalex.org/W2145910104', 'doi': 'https://doi.org/10.1086/171447', 'mag': '2145910104'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1086/171447', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S1980519', 'display_name': 'The Astrophysical Journal', 'issn_l': '0004-637X', 'issn': ['0004-637X', '1538-4357'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320083', 'host_organization_name': 'IOP Publishing', 'host_organization_lineage': ['https://openalex.org/P4310311669', 'https://openalex.org/P4310320083'], 'host_organization_lineage_names': ['Institute of Physics', 'IOP Publishing'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': True, 'oa_status': 'bronze', 'oa_url': 'https://doi.org/10.1086/171447', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5043026151', 'display_name': 'B. 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