TY  - JOUR
AU  - Christopher Frei
TI  - Sums of units in function fields II:
 The extension problem
JO  - Acta Arithmetica
PY  - 2011
SP  - 361
EP  - 369
VL  - 149
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/aa149-4-5/
DO  - 10.4064/aa149-4-5
LA  - en
ID  - 10_4064_aa149_4_5
ER  -