00405nam a2200121Ia 4500008004100000100002500041245003300066245002600099260000900125856005700134999001900191952007300210160531s9999    xx            000 0 und d  aHazawinkel, Michiel.  aEncyclopaedia of Mathematics  cby Michiel Hazewinkel  c2012  uhttps://www.encyclopediaofmath.org/index.php/Algebra  c295149d295149  001040aCLbCLd2016-05-31l0r2016-05-31 00:00:00w2016-05-31yCBE