TY  - JOUR
AU  - Israel Halperin
TI  - Extension of the rank function
JO  - Studia Mathematica
PY  - 1966
SP  - 325
EP  - 335
VL  - 27
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/sm-27-3-325-335/
DO  - 10.4064/sm-27-3-325-335
LA  - en
ID  - 10_4064_sm_27_3_325_335
ER  -