Stroeven, Piet, and Zhanqi Guo. “SAMPLING CONCRETE BY TOO SMALL ELEMENTS; WHAT SHOULD WE DO TO GET RELIABLE INFORMATION?”. Image Analysis and Stereology 27, no. 3 (May 3, 2011): 151–162. Accessed November 24, 2024. https://ias-iss.org/ojs/IAS/article/view/840.