Trąbska, Joanna, and Barbara Trybalska. “True and Fake Red Layers on the Objects from Archaeological and Historical Context: Microscopic Observations”. Geology, Geophysics and Environment 40, no. 2 (June 30, 2014): 241. Accessed November 21, 2024. https://ggae.agh.edu.pl/index.php/geol/article/view/624.