Recent peer-reviewed research on SAP S/4HANA migrations (2023–2025)

I’m writing a bachelor’s thesis on business cases for SAP S/4HANA migrations and need up-to-date, peer-reviewed sources (2023–2025)—journal articles or conference papers preferred. Please share DOIs or stable links, especially on ROI (Return on Investment) / TCO (Total Cost of Ownership), migration approaches (greenfield/brownfield), risk/governance, and RISE vs on-prem.

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