New Zealand Applied Mathematics Laboratory, Wellington (1955-1956)

 Naval Research Laboratory, Auckland (1958-1960)

Research Triangle Institute, North Carolina (1961-1966)

 UNC-Chapel Hill (1966-).

Books:

"Stationary and Related Stochastic Processes" (with Harald Cramer), Wiley, N.Y, 1967.

"Extremes and Related Properties of Random Sequences and Processes" (with G. Lindgren and H. Rootzen), Springer-Verlag, N.Y., 1983.

Articles:

Limit theorems for strongly mixing stationary random measures (with T. Hsing), Stochastic Processes and their Applications, 36 (1990), 231-243.

On a basis for 'Peaks over Threshold' modeling, Statistics and Probability Letters, 12 (1991), 357-362.

On central limit theory for families of strongly mixing additive random functions (with H. Rootzen), in "Festschrift in Honour of G. Kallianpur" (S. Cambanis, et al.,eds), Springer-Verlag, N.Y (1993), 211-223.

Extremes and exceedance measures for continuous parameter stationary processes, in "Extreme Value Theory and Applications" (J. Galambos et al., eds.), Kluwer Academic Publishers (1994), 371-388.

On high level exceedance modeling and tail inference, Journal of Statistical Planning and Inference (1995),45, 247-260.

Research Interests

Awards

• Honorary Doctorate, Lund University
• Fellow, ASA
• Fellow, IMS
• Member, IMS Council
• Member, ISI.