| 2014 | Scanning electron microscopic characterization of iron-gall inks from different tannin sources – applications for cultural heritage | da Costa, Antonio; Correa, Fernanda; Sant’Annа, Gustavo; de Carvalho, Sheyla; dos Santos, Fernanda; Lutterbach, Marcia | | Article | 2014 | Scanning electron microscopic characterization of iron-gall inks from different tannin sources – applications for cultural heritage | da Costa, Antonio; Correa, Fernanda; Sant’Annа, Gustavo; de Carvalho, Sheyla; dos Santos, Fernanda; Lutterbach, Marcia |