Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W3016597417', 'doi': None, 'title': 'GPS-NAVSTAR -The navigation system of the future', 'display_name': 'GPS-NAVSTAR -The navigation system of the future', 'publication_year': 1981, 'publication_date': '1981-01-01', 'ids': {'openalex': 'https://openalex.org/W3016597417', 'mag': '3016597417'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'http://ui.adsabs.harvard.edu/abs/1981OrNav...2..188S/abstract', '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/A5037432503', 'display_name': 'Andrew Stiller', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': True, 'raw_author_name': 'A. Stiller', 'raw_affiliation_strings': [], 'affiliations': []}], 'institution_assertions': [], 'countries_distinct_count': 0, 'institutions_distinct_count': 0, 'corresponding_author_ids': ['https://openalex.org/A5037432503'], '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': 55}, 'biblio': {'volume': '2', 'issue': None, 'first_page': '188', 'last_page': '218'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10655', 'display_name': 'Global Navigation Satellite Systems (GNSS)', 'score': 0.939, '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'}}, 'topics': [{'id': 'https://openalex.org/T10655', 'display_name': 'Global Navigation Satellite Systems (GNSS)', 'score': 0.939, '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/global-navigation-satellite-systems', 'display_name': 'Global Navigation Satellite Systems', 'score': 0.633729}, {'id': 'https://openalex.org/keywords/gnss', 'display_name': 'GNSS', 'score': 0.551679}, {'id': 'https://openalex.org/keywords/multi-gnss-experiment', 'display_name': 'Multi-GNSS Experiment', 'score': 0.537233}], 'concepts': [{'id': 'https://openalex.org/C60229501', 'wikidata': 'https://www.wikidata.org/wiki/Q18822', 'display_name': 'Global Positioning System', 'level': 2, 'score': 0.7857623}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.45254374}, {'id': 'https://openalex.org/C205649164', 'wikidata': 'https://www.wikidata.org/wiki/Q1071', 'display_name': 'Geography', 'level': 0, 'score': 0.3465346}, {'id': 'https://openalex.org/C62649853', 'wikidata': 'https://www.wikidata.org/wiki/Q199687', 'display_name': 'Remote sensing', 'level': 1, 'score': 0.3457019}, {'id': 'https://openalex.org/C76155785', 'wikidata': 'https://www.wikidata.org/wiki/Q418', 'display_name': 'Telecommunications', 'level': 1, 'score': 0.10244393}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'http://ui.adsabs.harvard.edu/abs/1981OrNav...2..188S/abstract', '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/W3182755205', 'https://openalex.org/W3171541862', 'https://openalex.org/W3169913721', 'https://openalex.org/W3135331737', 'https://openalex.org/W3129699358', 'https://openalex.org/W3128865071', 'https://openalex.org/W3123124374', 'https://openalex.org/W3086814776', 'https://openalex.org/W3046468648', 'https://openalex.org/W3041296919', 'https://openalex.org/W3026589043', 'https://openalex.org/W3025160555', 'https://openalex.org/W3023908288', 'https://openalex.org/W3019426640', 'https://openalex.org/W3016241469', 'https://openalex.org/W3009921309', 'https://openalex.org/W2997869865', 'https://openalex.org/W2064136227', 'https://openalex.org/W1678680099', 'https://openalex.org/W1638864343'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3016597417', 'counts_by_year': [], 'updated_date': '2024-09-19T01:36:10.702349', 'created_date': '2020-04-24'}