List of Articles Combinatorial optimization Open Access Article Abstract Page Full-Text 1 - An integrated crew scheduling problem considering reserve crew in air transportation: Ant colony optimization algorithm Saeed Saemi Alireza Rashidi Komijan Reza Tavakkoli-Moghaddam Mohammad Fallah 10.22094/joie.2022.1934788.1885 Open Access Article Abstract Page Full-Text 2 - A Simulated Annealing Algorithm for Multi Objective Flexible Job Shop Scheduling with Overlapping in Operations Mehrzad Abdi Khalife Babak Abbasi Amirhossein Kamali Dolat abadi Open Access Article Abstract Page Full-Text 3 - A new metaheuristic genetic-based placement algorithm for 2D strip packing Jaya Thomas Narendra S. Chaudhari Open Access Article Abstract Page Full-Text 4 - Cuckoo search via Lévy flights for the capacitated vehicle routing problem Jon Henly Santillan Samantha Tapucar Cinmayii Manliguez Vicente Calag