Karlsen, H. A., & Tjøstheim, D. (1998). Nonparametric estimation in null recurrent time series.
Chicago Style (17th ed.) CitationKarlsen, Hans Arnfinn, and Dag Tjøstheim. Nonparametric Estimation in Null Recurrent Time Series. Berlin, 1998.
MLA (9th ed.) CitationKarlsen, Hans Arnfinn, and Dag Tjøstheim. Nonparametric Estimation in Null Recurrent Time Series. 1998.
Warning: These citations may not always be 100% accurate.