Evaluating the aging of blue pen inks using ToF-SIMS and multivariate statistical analysisFinšgar, Matjaž (Avtor) Varda, Katja Andrina (Avtor) Tof-SIMSMVSAMCRPCAdocument forgeryink agingElsevier20252025-08-08 10:46:32Članek v reviji94208UDK: 544.5/.6COBISS_ID: 245200899DOI: 10.1016/j.microc.2025.114777ISSN pri članku: 1095-9149sl© 2025 The Authors