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						Varieties of groups and cellular covers Petapirak, Montakarn. - Duisburg : Universitätsbibliothek Duisburg-Essen, 2014
					
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						Approximations and Endomorphism Algebras of Modules Göbel, Rüdiger. - Berlin/Boston : De Gruyter, 2012, 2nd rev. and exp. ed.
					
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						Combinatorial Principles and ﬡ_k-free Modules Salazar Pedroza, Héctor Gabriel. - Duisburg : Universitätsbibliothek Duisburg-Essen, 2012
					
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						Contributions to Module Theory Berlin : de Gruyter, 2008, 1. Aufl.
					
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									Ankündigung				
								
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						Models, Modules and Abelian Groups Berlin/Boston : De Gruyter, 2008
					
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						Models, modules and Abelian groups Berlin : de Gruyter, 2008
					
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						Approximations and endomorphism algebras of modules Göbel, Rüdiger. - Berlin : de Gruyter, 2006
					
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						Approximations and Endomorphism Algebras of Modules Göbel, Rüdiger. - Berlin/Boston : De Gruyter, 2006
					
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						Abelian Groups and Modules Dordrecht : Springer Netherlands, 1995
					
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