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References from Erratum to “Ľubomír Vančo, Magdaléna Kadlečíková, Juraj Breza, Pavol Michniak, Michal Čeppan, Milena Reháková, Eva Belányiová, Beata Butvinová: Differentiation of selected blue writing inks by surface-enhanced Raman spectroscopy”, Chemical Papers 69 (4) 518–526 (2015). Local targets link to admitted publications; unresolved targets remain external evidence.