Analysis of factors influencing Circular-Lean-Six Sigma 4.0 implementation considering sustainability implications: an exploratory study. - Dounia Skalli; Abdelkabir Charkaoui; Anass Cherrafi; Alireza Shokri; Jose Arturo Garza-Reyes; Jiju Antony (Int. J. Prod. Res., 2024)