Hosseinzadeh Lotfi, Farhad, and Hosein Didehkhani. “Developing a Model for Determining Practical Super Efficiency and Improvement Based on Artificial DMUs”. Research Annals of Industrial and Systems Engineering 2, no. 1 (January 29, 2025): 72–80. Accessed August 28, 2025. https://raise.reapress.com/journal/article/view/38.