“THE STATE OF THE PRESSED VISCO-PLASTIC MEDIUM OF PLANT-GYPSUM COMPOSITION (PGC) UDER FLAT DEFORMATION CONDITIONS”, WS, vol. 1, no. 2(6), pp. 75–81, Feb. 2016, Accessed: Nov. 01, 2026. [Online]. Available: https://rspublisher.org/index.php/ws/article/view/852