{"id":"https://openalex.org/A5034201683","orcid":null,"observed_orcids":[],"display_name":"Michael Zettlitzer","raw_author_names":["M. Zettlitzer","M.\u00a0Zettlitzer","Michael Zettlitzer"],"full_name":"Michael Zettlitzer","works_count":32,"cited_by_count":459,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":10,"i10_index":10},"ids":{"openalex":"https://openalex.org/A5034201683","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I901980530","ror":"https://ror.org/05h8dpx23","display_name":"RWE (Germany)","country_code":"DE","type":"company","lineage":["https://openalex.org/I901980530"]},"years":[2013,2011,2010,2008,2002,2000,1997,1996,1995,1992]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T11302","display_name":"CO2 Sequestration and Geologic Interactions","count":21,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10995","display_name":"Methane Hydrates and Related Phenomena","count":11,"subfield":{"id":"https://openalex.org/subfields/2304","display_name":"Environmental Chemistry"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11791","display_name":"Microbial Community Ecology and Physiology","count":9,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10892","display_name":"Drilling and Well Engineering","count":7,"subfield":{"id":"https://openalex.org/subfields/2103","display_name":"Fuel Technology"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10491","display_name":"Enhanced Oil Recovery Techniques","count":6,"subfield":{"id":"https://openalex.org/subfields/2103","display_name":"Fuel Technology"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11302","display_name":"CO2 Sequestration and Geologic Interactions","value":0.0001685,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12247","display_name":"Microbial Applications in Construction Materials","value":9.77e-05,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10995","display_name":"Methane Hydrates and Related Phenomena","value":9.65e-05,"subfield":{"id":"https://openalex.org/subfields/2304","display_name":"Environmental Chemistry"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10892","display_name":"Drilling and Well Engineering","value":3.76e-05,"subfield":{"id":"https://openalex.org/subfields/2103","display_name":"Fuel Technology"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10491","display_name":"Enhanced Oil Recovery Techniques","value":3.29e-05,"subfield":{"id":"https://openalex.org/subfields/2103","display_name":"Fuel Technology"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"78762247","wikidata":"https://www.wikidata.org/wiki/Q1273174","display_name":"Petroleum engineering","score":0.6706663966178894},{"id":"39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","score":0.6273000240325928},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.6220441460609436},{"id":"107872376","wikidata":"https://www.wikidata.org/wiki/Q321355","display_name":"Environmental chemistry","score":0.6135174036026001},{"id":"127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","score":0.5962111353874207}],"counts_by_year":[{"year":1991,"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":1995,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1997,"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":2002,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":9,"oa_works_count":4,"cited_by_count":0},{"year":2011,"works_count":6,"oa_works_count":4,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":0,"cited_by_count":24},{"year":2013,"works_count":3,"oa_works_count":0,"cited_by_count":35},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":34},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":27},{"year":2016,"works_count":1,"oa_works_count":1,"cited_by_count":40},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":44},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":29},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":20},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":21},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":18},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":16},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":18},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":18},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":16},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":33}],"display_name_alternatives":["M. Zettlitzer","M.\u00a0Zettlitzer","Michael Zettlitzer"],"block_key":"m zettlitzer","works_api_url":"https://api.openalex.org/works?filter=author.id:A5034201683","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}
