Czech, M. (1995) “Description of Creep Strain Anisotropy of the Lignostone in The Form of Tensor Polynomial and a Modified Tensor Polynomial”, Engineering Transactions, 43(3), pp. 397–411. Available at: https://et3.ippt.pan.pl/index.php/et/article/view/1506 (Accessed: 9 June 2025).