TY - CPAPER AU - Jana Ziljak Grsic AU - Lidija Tepes Golubic AU - Sanda Stanacev Bajzek TI - HIDDEN FINE ART WITH IR COLORANTS T2 - Proceedings of 9th SWS International Scientific Conference on Arts And Humanities - ISCAH 2022, VOL 9 PY - 2022 SP - 89 EP - 96 DO - 10.35603/sws.iscah.2022/s08.10 PB - SGEM WORLD SCIENCE (SWS) Scholarly Society ER -