Singh, R., Ramon Salvador Fernandez, and Johannes Vrana. “Guideline for the Development of an NDE 4.0 Roadmap”. Journal of Non-Destructive Testing and Evaluation (JNDE), vol. 20, no. 4, Dec. 2023, pp. 23-41, https://jnde.isnt.in/index.php/JNDE/article/view/63.