TY  - JOUR
TI  - A New Approach to the Economic Analysis of Nonstationary Time Series and the Business Cycle
AU  - James D. Hamilton
JO  - Econometrica
PY  - 1989
VL  - 57
IS  - 2
DO  - 10.2307/1912559
UR  - https://doi.org/10.2307/1912559
ER  -