Danane, Mouad, et al. “Low-Cost Mobile VR for Maintenance 4.0 Education: A Mixed-Methods Needs Analysis in Resource-Constrained Training Institutes”. International Journal of Interactive Mobile Technologies (iJIM), vol. 20, no. 17, Sept. 2026, pp. pp. 46–67, doi:10.3991/ijim.v20i17.62374.