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We apply this reduction to finite groups [Formula: see text] whose order is divisible by at most three primes and show that the Gruenberg\u2013Kegel graph of such groups coincides with the prime graph of [Formula: see text]. <\/jats:p>","DOI":"10.1142\/s0218196717500308","type":"journal-article","created":{"date-parts":[[2017,8,1]],"date-time":"2017-08-01T02:21:22Z","timestamp":1501554082000},"page":"619-631","source":"Crossref","is-referenced-by-count":10,"title":["On the Gruenberg\u2013Kegel graph of integral group rings of finite groups"],"prefix":"10.1142","volume":"27","author":[{"given":"W.","family":"Kimmerle","sequence":"first","affiliation":[{"name":"IGT, Fachbereich Mathematik, University of Stuttgart, Germany"}]},{"given":"A.","family":"Konovalov","sequence":"additional","affiliation":[{"name":"Centre for Interdisciplinary Research in Computational Algebra, University of St Andrews, St Andrews, Scotland, UK"}]}],"member":"219","published-online":{"date-parts":[[2017,10,2]]},"reference":[{"key":"S0218196717500308BIB003","doi-asserted-by":"publisher","DOI":"10.1016\/j.jalgebra.2010.05.026"},{"key":"S0218196717500308BIB008","first-page":"7","volume":"91","author":"Berman S. 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