APA (7th ed.) Citation

Saikkonen, P., & Lütkepohl, H. (1999). Testing for unit roots in time series with level shifts.

Chicago Style (17th ed.) Citation

Saikkonen, Pentti, and Helmut Lütkepohl. Testing for Unit Roots in Time Series with Level Shifts. Berlin, 1999.

MLA (9th ed.) Citation

Saikkonen, Pentti, and Helmut Lütkepohl. Testing for Unit Roots in Time Series with Level Shifts. 1999.