de Haan, L. and Zhou, C. (2020). Trends in extreme value indices Journal of the American Statistical Association, 116(535):1265--1279.
Li, M., Koopman, S.J., Lit, R. and Petrova, D. (2020). Long-term forecasting of El Niño events via dynamic factor simulations Journal of Econometrics, 214(1):46--66.