فهرس المقالات Redundancy allocation problem . Reliability optimization . Choice of redundancy strategies . k حرية الوصول المقاله صفحة الملخص نص كامل 1 - Redundancy allocation problem for k-out-of-n systems with a choice of redundancy strategies Mahsa Aghaei Ali Zeinal Hamadani Mostafa Abouei Ardakan