Sakai, K, and Y Shitara. “Influence of Physical States of Amide Type Gel-Lubricants on Their Tribological and Rheological Properties”. Tribologia - Finnish Journal of Tribology 32, no. 2 (February 2, 2014): 20–28. Accessed May 11, 2024. https://journal.fi/tribologia/article/view/69333.