TY  - JOUR
A1  - Baumgärtel, Hellmut
T1  - On a theorem of Ashtekar and Lewandowski
Y1  - 1999
SN  - 981-023627-1
ER  - 
TY  - JOUR
A1  - Baumgärtel, Hellmut
T1  - An inverse problem for superselection structures on C*-algebras with nontrivial center
Y1  - 1999
ER  -