List of Articles project portfolio selection Open Access Article Abstract Page Full-Text 1 - The project portfolio selection and scheduling problem: mathematical model and algorithms Bahman Naderi 20.1001.1.22519904.2013.6.13.7.6 Open Access Article Abstract Page Full-Text 2 - Project Portfolio Selection with the Maximization of Net Present Value Mostafa Nikkhah Nasab Amir Abbas Najafi 20.1001.1.22519904.2013.6.12.8.5