TY  - JOUR
TI  - Specification and testing of some modified count data models
AU  - John Mullahy
JO  - Journal of Econometrics
PY  - 1986
VL  - 33
IS  - 3
DO  - 10.1016/0304-4076(86)90002-3
UR  - https://doi.org/10.1016/0304-4076(86)90002-3
ER  -