{"id":"https://openalex.org/A5114008753","orcid":null,"observed_orcids":[],"display_name":"H. Friedrichsen","raw_author_names":["Friedrichsen, H.","H FRIEDRICHSEN","H Friedrichsen","H. FRIEDRICHSEN","H. Friedrichsen"],"full_name":"Hans-Peter Friedrichsen","works_count":33,"cited_by_count":1482,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":17,"i10_index":17},"ids":{"openalex":"https://openalex.org/A5114008753","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I124357947","ror":"https://ror.org/04cw6st05","display_name":"University of London","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947"]},"years":[1983]},{"institution":{"id":"https://openalex.org/I40120149","ror":"https://ror.org/052gg0110","display_name":"University of Oxford","country_code":"GB","type":"education","lineage":["https://openalex.org/I40120149"]},"years":[1982]},{"institution":{"id":"https://openalex.org/I5023651","ror":"https://ror.org/01pxwe438","display_name":"McGill University","country_code":"CA","type":"education","lineage":["https://openalex.org/I5023651"]},"years":[1989]},{"institution":{"id":"https://openalex.org/I55521800","ror":"https://ror.org/01khx4a30","display_name":"Goldsmiths University of London","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I55521800"]},"years":[1983]},{"institution":{"id":"https://openalex.org/I75951250","ror":"https://ror.org/046ak2485","display_name":"Freie Universit\u00e4t Berlin","country_code":"DE","type":"education","lineage":["https://openalex.org/I75951250"]},"years":[2013,2010,2000,1994,1993,1989]},{"institution":{"id":"https://openalex.org/I8087733","ror":"https://ror.org/03a1kwz48","display_name":"University of T\u00fcbingen","country_code":"DE","type":"education","lineage":["https://openalex.org/I8087733"]},"years":[1986,1983,1982,1980,1979,1978]}],"last_known_institutions":[{"id":"https://openalex.org/I75951250","ror":"https://ror.org/046ak2485","display_name":"Freie Universit\u00e4t Berlin","country_code":"DE","type":"education","lineage":["https://openalex.org/I75951250"]}],"topics":[{"id":"https://openalex.org/T10001","display_name":"Geological and Geochemical Analysis","count":22,"subfield":{"id":"https://openalex.org/subfields/1906","display_name":"Geochemistry and Petrology"},"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","count":17,"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/T11740","display_name":"Geochemistry and Elemental Analysis","count":13,"subfield":{"id":"https://openalex.org/subfields/1906","display_name":"Geochemistry and Petrology"},"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/T10017","display_name":"Geology and Paleoclimatology Research","count":11,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"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/T10398","display_name":"Groundwater and Isotope Geochemistry","count":8,"subfield":{"id":"https://openalex.org/subfields/1906","display_name":"Geochemistry and Petrology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12821","display_name":"Geological Formations and Processes Exploration","value":5.82e-05,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"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/T10398","display_name":"Groundwater and Isotope Geochemistry","value":3.64e-05,"subfield":{"id":"https://openalex.org/subfields/1906","display_name":"Geochemistry and Petrology"},"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/T13404","display_name":"Geological and Tectonic Studies in Latin America","value":3.27e-05,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"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/T10001","display_name":"Geological and Geochemical Analysis","value":2.54e-05,"subfield":{"id":"https://openalex.org/subfields/1906","display_name":"Geochemistry and Petrology"},"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","value":2.46e-05,"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"}}],"x_concepts":[{"id":"127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","score":0.9325224161148071},{"id":"71468253","wikidata":"https://www.wikidata.org/wiki/Q785643","display_name":"Isotopes of oxygen","score":0.7654228210449219},{"id":"17409809","wikidata":"https://www.wikidata.org/wiki/Q161764","display_name":"Geochemistry","score":0.7640262842178345},{"id":"111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","score":0.6541392803192139},{"id":"151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","score":0.6093968152999878}],"counts_by_year":[{"year":1978,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1979,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":1980,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1982,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1983,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":1985,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2008,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":51},{"year":2013,"works_count":2,"oa_works_count":1,"cited_by_count":46},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":28},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":38},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":57},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":43},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":42},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":45},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":47},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":74},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":48},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":50},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":44},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":40},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":17}],"display_name_alternatives":["Friedrichsen, H.","H FRIEDRICHSEN","H Friedrichsen","H. FRIEDRICHSEN","H. Friedrichsen"],"block_key":"h friedrichsen","works_api_url":"https://api.openalex.org/works?filter=author.id:A5114008753","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5114008753","updated_date":"2026-11-10T14:30:39","created_date":"2016-06-24T00:00:00"}
