List of Articles Generalized pre-requisites Open Access Article Abstract Page Full-Text 1 - A mathematical model for balancing (cost-time-quality and environmental risks) in oil and gas projects and solving it by multi-objective Bee Colony Algorithm Hossein Ali Heydari Heresh Soltanpanah Ayub Rahimzadeh 10.22034/amfa.2019.1864177.1197 Open Access Article Abstract Page Full-Text 2 - Development of oil projects scheduling model and modification of project portfolio costs by balancing cost, time, quality and environmental impact objectives and solving it with metahistorical algorithms Sadegh Feizollahi