List of Articles Proper efficiency Open Access Article Abstract Page Full-Text 1 - Determining approximate efficient solutions of multiobjective optimization problems using the combined constrained scalarization method Mehrdad Ghaznavi Fereshteh Akbari Esmaile Khorram Open Access Article Abstract Page Full-Text 2 - An approach to find properly efficient solutions nearby ideal point in multi-objective optimization Behnam Hozzar Ghasem Tohidi behrouz daneshian