TY - JOUR A1 - Baumgärtel, Hellmut A1 - Jurke, Matthias A1 - Lledó, Fernando T1 - On free nets over Minkowski space Y1 - 1995 ER - TY - JOUR A1 - Lledó, Fernando T1 - A family of examples with quantum constraints Y1 - 1997 ER - TY - JOUR A1 - Baumgärtel, Hellmut A1 - Lledó, Fernando T1 - Some results on superselection structures for C*-algebras with nontrivial center Y1 - 1997 SN - 981-02-3984-X ER - TY - JOUR A1 - Baumgärtel, Hellmut A1 - Lledó, Fernando T1 - Superselection structures for C*-algebras with nontrivial center Y1 - 1997 ER - TY - JOUR A1 - Lledó, Fernando T1 - Dual group actions on C*-algebras and their description by Hilbert extensions Y1 - 2002 ER - TY - JOUR A1 - Baumgärtel, Hellmut A1 - Jurke, Matthias A1 - Lledó, Fernando T1 - Twisted duality for the CAR-algebra Y1 - 2002 ER -