TY  - JOUR
AU  - H. Kaufmann
TI  - On Existence and Uniqueness of Maximum Likelihood Estimates in Quantal and Ordinal Response Models.
JO  - Metrika
PY  - 1988
SP  - 291
EP  - 313
VL  - 35
IS  - 3-4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MET_1988__35_3-4_176193/
ID  - MET_1988__35_3-4_176193
ER  -