TY  - JOUR
AU  - J. PFANZAGL
TI  - A Characterization of Sufficiency by Power Functions.
JO  - Metrika
PY  - 1974
SP  - 197
EP  - 200
VL  - 21
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MET_1974__21_175641/
ID  - MET_1974__21_175641
ER  -