Rela, Paulo Roberto, et al. “ Art Collection Preservation: Gama-Radiation Application for Decontaminating Objects in the Instituto De Estudos Brasileiros ”. Revista Do Instituto De Estudos Brasileiros, no. 46, Feb. 2008, pp. 285-92, https://doi.org/10.11606/issn.2316-901X.v0i46p285-292.