00965nmm a22002655u 4500991001287209707536cr nn 008mamaa100301s2009 uk j eng d9781848829411b1399069x-39ule_instDip.to MatematicaengWehrfritz, B. A. F.441832Group and ring theoretic properties of polycyclic groups[e-book] /by B. A. F. WehrfritzLondon :Springer,2009v.: digitalAlgebra and applications ;10AlgebraGroup theorySpringer eBookshttp://dx.doi.org/10.1007/978-1-84882-941-1An electronic book accessible through the World Wide Web .b1399069x03-03-2228-06-11991001287209707536Group and ring theoretic properties of polycyclic groups247475UNISALENTOle01328-06-11m@ -enguk 00