“THE SPHERE DRAG RHEOMETER: A NEW INSTRUMENT FOR ANALYSING MUD AND DEBRIS FLOW MATERIALS”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 11, no. 25, pp. 2512–2519, Nov. 2021, Accessed: May 04, 2026. [Online]. Available: https://geomatejournal.com/geomate/article/view/2751