TY  - BOOK
AU  - Thomsen,Klaus
ED  - University of Aarhus
TI  - All extensions by Cr (Fn) are semi-invertible
PY  - 2008///
CY  - Aarhus
PB  - [University of Aarhus]
KW  - Mathematics
UR  - www.imf.au.dkinstitut@imf.au
ER  -