Lemmermeyer, F.2016-02-082016-02-0820060025-5858http://hdl.handle.net/11693/23611In this article we study the 2-Selmer groups of number fields F as well as some related groups, and present connections to the quadratic reciprocity law in F. © Mathematische Seminar 2006.EnglishSelmer groups and quadratic reciprocityArticle10.1007/BF029608691865-8784