Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2074959938', 'doi': 'https://doi.org/10.1007/bf02884235', 'title': 'A carinate bird from the Upper Jurassic of western Liaoning, China', 'display_name': 'A carinate bird from the Upper Jurassic of western Liaoning, China', 'publication_year': 1997, 'publication_date': '1997-03-01', 'ids': {'openalex': 'https://openalex.org/W2074959938', 'doi': 'https://doi.org/10.1007/bf02884235', 'mag': '2074959938'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/bf02884235', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4210205735', 'display_name': 'Chinese Science Bulletin', 'issn_l': '1001-6538', 'issn': ['1001-6538', '1861-9541'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319965', 'host_organization_name': 'Springer Nature', 'host_organization_lineage': ['https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Springer Nature'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5110369132', 'display_name': 'Lianhai Hou', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I19820366', 'display_name': 'Chinese Academy of Sciences', 'ror': 'https://ror.org/034t30j35', 'country_code': 'CN', 'type': 'government', 'lineage': ['https://openalex.org/I19820366']}], 'countries': ['CN'], 'is_corresponding': True, 'raw_author_name': 'Lianhai Hou', 'raw_affiliation_strings': ['Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences , Beijing , China.'], 'affiliations': [{'raw_affiliation_string': 'Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences , Beijing , China.', 'institution_ids': ['https://openalex.org/I19820366']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': ['https://openalex.org/A5110369132'], 'corresponding_institution_ids': ['https://openalex.org/I19820366'], 'apc_list': None, 'apc_paid': None, 'fwci': 2.241, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 36, 'citation_normalized_percentile': {'value': 0.809725, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 89, 'max': 90}, 'biblio': {'volume': '42', 'issue': '5', 'first_page': '413', 'last_page': '417'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10955', 'display_name': 'Paleontology and Evolutionary Biology', 'score': 0.9996, 'subfield': {'id': 'https://openalex.org/subfields/1911', 'display_name': 'Paleontology'}, 'field': {'id': 'https://openalex.org/fields/19', 'display_name': 'Earth and Planetary Sciences'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10955', 'display_name': 'Paleontology and Evolutionary Biology', 'score': 0.9996, 'subfield': {'id': 'https://openalex.org/subfields/1911', 'display_name': 'Paleontology'}, 'field': {'id': 'https://openalex.org/fields/19', 'display_name': 'Earth and Planetary Sciences'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T11354', 'display_name': 'Evolution and Paleontology Studies', 'score': 0.9953, 'subfield': {'id': 'https://openalex.org/subfields/1911', 'display_name': 'Paleontology'}, 'field': {'id': 'https://openalex.org/fields/19', 'display_name': 'Earth and Planetary Sciences'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10109', 'display_name': 'Paleontology and Stratigraphy of Fossils', 'score': 0.9555, 'subfield': {'id': 'https://openalex.org/subfields/1911', 'display_name': 'Paleontology'}, 'field': {'id': 'https://openalex.org/fields/19', 'display_name': 'Earth and Planetary Sciences'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [], 'concepts': [{'id': 'https://openalex.org/C191935318', 'wikidata': 'https://www.wikidata.org/wiki/Q148', 'display_name': 'China', 'level': 2, 'score': 0.84513533}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.5931963}, {'id': 'https://openalex.org/C151730666', 'wikidata': 'https://www.wikidata.org/wiki/Q7205', 'display_name': 'Paleontology', 'level': 1, 'score': 0.46836078}, {'id': 'https://openalex.org/C205649164', 'wikidata': 'https://www.wikidata.org/wiki/Q1071', 'display_name': 'Geography', 'level': 0, 'score': 0.45879835}, {'id': 'https://openalex.org/C100970517', 'wikidata': 'https://www.wikidata.org/wiki/Q52107', 'display_name': 'Physical geography', 'level': 1, 'score': 0.36618525}, {'id': 'https://openalex.org/C166957645', 'wikidata': 'https://www.wikidata.org/wiki/Q23498', 'display_name': 'Archaeology', 'level': 1, 'score': 0.20467609}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/bf02884235', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4210205735', 'display_name': 'Chinese Science Bulletin', 'issn_l': '1001-6538', 'issn': ['1001-6538', '1861-9541'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319965', 'host_organization_name': 'Springer Nature', 'host_organization_lineage': ['https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Springer Nature'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 9, 'referenced_works': ['https://openalex.org/W1501170150', 'https://openalex.org/W2030383033', 'https://openalex.org/W2037267175', 'https://openalex.org/W2349497025', 'https://openalex.org/W2786463731', 'https://openalex.org/W3136701213', 'https://openalex.org/W3151423771', 'https://openalex.org/W3160504254', 'https://openalex.org/W4253667705'], 'related_works': ['https://openalex.org/W600967366', 'https://openalex.org/W3186982001', 'https://openalex.org/W2748952813', 'https://openalex.org/W2383989146', 'https://openalex.org/W2354620178', 'https://openalex.org/W2350270224', 'https://openalex.org/W2324615561', 'https://openalex.org/W2245170124', 'https://openalex.org/W2137941439', 'https://openalex.org/W2086120259'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2074959938', 'counts_by_year': [{'year': 2020, 'cited_by_count': 2}, {'year': 2018, 'cited_by_count': 1}, {'year': 2017, 'cited_by_count': 1}, {'year': 2016, 'cited_by_count': 1}, {'year': 2014, 'cited_by_count': 1}, {'year': 2013, 'cited_by_count': 1}, {'year': 2012, 'cited_by_count': 2}], 'updated_date': '2024-12-11T03:47:00.353429', 'created_date': '2016-06-24'}