Stašková, Silvia 1991 Study of changes of writing inks on the paper documents / aut. Silvia Stašková, Aleš Ház, Milena Reháková. Reháková, Milena, 1964-. Ház, Aleš, 1985- In: Proceedings 8th Conference on information and graphic arts technology, Ljubljana, Slovenia, 7-8 June 2018. -- 1. vyd.. -- 277 s.. -- 978-961-6900-24-9 Conference on information and graphic arts technology. -- Ljubljana : University of Ljubljana, 2018. -- S. 248-251.