121657

While the MPRA paper is the most direct match, "121657" also appears as an article ID in other scientific journals:

The paper develops a structured approach for companies to adopt Industry 4.0 technologies while maintaining sustainability and ethics. 1. Strategic Pillars 121657

The number most likely refers to a specific academic paper within the Munich Personal RePEc Archive (MPRA) , titled " The Digital Transformation of the Natural Ingredients Industry ." While the MPRA paper is the most direct

A study on Bone mesenchymal stem cells and gastric cancer (Life Sciences, Vol 323). 121657