Blue and Black Ballpoint Pen Inks: a Systematic Review for Ink Characterization and Dating Analysis by Roberta Petry Gorziza, Carina Maria Bello de Carvalho, Taísa Korndörfer, Rafael Scorsatto Ortiz, Marina González, Leandra Borba Leal, Tatiana Trejos, Renata Pereira Limberger

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