Zainal Abidin, D., Theminimulla, S., Waugh, D. G., & Griffin, J. M. (2022). Applying a non-invasive multi-spectral sensing technique to two-phase flow measurements for pipeline monitoring. International Journal of Energy and Environmental Engineering, 13(2 (June 2022). https://doi.org/10.1007/s40095-021-00471-4