P. Hanafizadeh, H. Navabi, and A. Seifi, Robust Portfolio Selection Problems, Second International Conference on Industrial Engineering, Amirkabir University of Technology, Tehran, Iran.

P. Hanafizadeh, and A. Hashemi, Robust Strategic Planning, Second International Management Conference. School of Management and Economics, Sharif University of Technology, Tehran, Iran.

S. Moayer and P. Hanafizadeh, Information Systems Strategic Planning in Holding Companies, Second International Management Conference, School of Management and Economics, Sharif University of Technology, Tehran, Iran.

P. Hanafizadeh, A. Alizadeh, and M. Rezaei, Identifying e-Commerce Implementation Barriers and their Ranking, First Conference on New Registration Methods, held by the Judiciary of Iran.

P. Hanafizadeh, Designing a Natinal e-Readiness Assessment Model, "Research's Week 2006", School of Management and Accounting, Allameh Tabataba'i University, Tehran, Iran.

A. Seifi, N. Geroyan, and P. Hanafizadeh, A Comparison of Robust Optimization Models for Multi-period Portfolio Optimization Models Using Simulation, IORS 2007, Kish Island, Iran.