- Infinite Horizon Stochastic Impulse Control with Delay and Random Coefficients, Authors: Boualem Djehiche, Said Hamadène, Ibtissem Hdhiri and Helmi Zaatra, 2021 Mathematics of Operations Research, arXiv:1904.11924.
- Risk-Sensitive Impulse Control Problems with Jumps and Execution Delays, Authors : Ibtissem Hdhiri and Helmi Zaatra ( submitted).
- Risk-Sensitive Impulse Control Problems with Signed Intervention Costs and Random Execution Delays, Author: Helmi Zaatra (To be submitted).
- Exact simulations for the solution of SDEs: a new approach, Authors: Helmi Zaatra and Samir Ben Hariz (In progress)
