TY  - JOUR
AU  - Tuomas Sorvali
TI  - On the dilatation of isomorphisms between covering groups
JO  - Annales Fennici Mathematici
PY  - 1973
VL  - 521-560
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1973.551/
DO  - 10.5186/aasfm.1973.551
LA  - en
ID  - AFM_1973_521-560_a9
ER  -