Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W746012609', 'doi': None, 'title': 'State-of-the-art approach to outer planet exploration', 'display_name': 'State-of-the-art approach to outer planet exploration', 'publication_year': 1971, 'publication_date': '1971-06-01', 'ids': {'openalex': 'https://openalex.org/W746012609', 'mag': '746012609'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://ntrs.nasa.gov/search.jsp?R=19710057237', 'pdf_url': None, 'source': None, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': [], '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/A5069793859', 'display_name': 'C. H. Guttman', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'C. H. Guttman', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5066190137', 'display_name': 'J. E. Martin', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'J. E. Martin', 'raw_affiliation_strings': [], 'affiliations': []}], 'countries_distinct_count': 0, 'institutions_distinct_count': 0, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': False, 'cited_by_count': 0, 'citation_normalized_percentile': {'value': 0.0, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 0, 'max': 58}, 'biblio': {'volume': None, 'issue': None, 'first_page': None, 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10325', 'display_name': 'Formation and Evolution of the Solar System', 'score': 0.9954, 'subfield': {'id': 'https://openalex.org/subfields/3103', 'display_name': 'Astronomy and Astrophysics'}, 'field': {'id': 'https://openalex.org/fields/31', 'display_name': 'Physics and Astronomy'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10325', 'display_name': 'Formation and Evolution of the Solar System', 'score': 0.9954, 'subfield': {'id': 'https://openalex.org/subfields/3103', 'display_name': 'Astronomy and Astrophysics'}, 'field': {'id': 'https://openalex.org/fields/31', 'display_name': 'Physics and Astronomy'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10406', 'display_name': 'Exploration and Study of Mars', 'score': 0.9798, 'subfield': {'id': 'https://openalex.org/subfields/3103', 'display_name': 'Astronomy and Astrophysics'}, 'field': {'id': 'https://openalex.org/fields/31', 'display_name': 'Physics and Astronomy'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T12449', 'display_name': 'Evolution and Applications of CubeSat Missions', 'score': 0.9797, 'subfield': {'id': 'https://openalex.org/subfields/2202', 'display_name': 'Aerospace Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/spacecraft', 'display_name': 'spacecraft', 'score': 0.505145}], 'concepts': [{'id': 'https://openalex.org/C87355193', 'wikidata': 'https://www.wikidata.org/wiki/Q411', 'display_name': 'Astrobiology', 'level': 1, 'score': 0.7271221}, {'id': 'https://openalex.org/C51244244', 'wikidata': 'https://www.wikidata.org/wiki/Q634', 'display_name': 'Planet', 'level': 2, 'score': 0.6564481}, {'id': 'https://openalex.org/C48103436', 'wikidata': 'https://www.wikidata.org/wiki/Q599031', 'display_name': 'State (computer science)', 'level': 2, 'score': 0.4324601}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.39120924}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.34575713}, {'id': 'https://openalex.org/C1276947', 'wikidata': 'https://www.wikidata.org/wiki/Q333', 'display_name': 'Astronomy', 'level': 1, 'score': 0.2613908}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.17560568}, {'id': 'https://openalex.org/C11413529', 'wikidata': 'https://www.wikidata.org/wiki/Q8366', 'display_name': 'Algorithm', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://ntrs.nasa.gov/search.jsp?R=19710057237', 'pdf_url': None, 'source': None, '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': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W842339425', 'https://openalex.org/W838019947', 'https://openalex.org/W811612936', 'https://openalex.org/W796545114', 'https://openalex.org/W778963756', 'https://openalex.org/W756924155', 'https://openalex.org/W316750884', 'https://openalex.org/W3126287742', 'https://openalex.org/W3005868061', 'https://openalex.org/W2998453187', 'https://openalex.org/W2994745274', 'https://openalex.org/W2992280862', 'https://openalex.org/W2087229171', 'https://openalex.org/W2030739073', 'https://openalex.org/W2009308485', 'https://openalex.org/W2008477298', 'https://openalex.org/W1989279121', 'https://openalex.org/W1988916920', 'https://openalex.org/W1946660337', 'https://openalex.org/W1540182384'], 'abstract_inverted_index': {'Outer': [0], 'planet': [1, 12], 'exploration': [2], 'spacecraft': [3], 'subsystems': [4], 'reliability': [5], 'and': [6, 14], 'ten': [7], 'year': [8], 'flight': [9], 'requirements': [10], 'for': [11], 'orbiting': [13], 'flyby': [15], 'missions': [16]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W746012609', 'counts_by_year': [], 'updated_date': '2024-08-22T01:54:03.807612', 'created_date': '2016-06-24'}