TY  - JOUR
TI  - The Nonparametric Approach to Demand Analysis
AU  - Hal R. Varian
JO  - Econometrica
PY  - 1982
VL  - 50
IS  - 4
DO  - 10.2307/1912771
UR  - https://doi.org/10.2307/1912771
ER  -