Łukowski J, Kaczmarek M. Laboratory Methods of Determination of Pore Structure Parameters: Formation Factor and Tortuosity of Permeable Media by Electric Methods. Eng. Trans. [Internet]. 2005 Jun. 26 [cited 2025 Jul. 16];50(4):267–286. Available from: https://et.ippt.pan.pl/index.php/et/article/view/532