Gonzalez, J. M., Portillo, M. C., & Saiz-Jimenez, C. (2008). Microorganisms and the conservation of Paleolithic paintings: Their role, risks and consequences. Restauro.
Lua i Stíl Chicago (17ú heag.)Gonzalez, Juan M., M. Carmen Portillo, agus Cesareo Saiz-Jimenez. "Microorganisms and the Conservation of Paleolithic Paintings: Their Role, Risks and Consequences." Restauro 2008.
Lua MLA (8ú heag.)Gonzalez, Juan M., et al. "Microorganisms and the Conservation of Paleolithic Paintings: Their Role, Risks and Consequences." Restauro, 2008.
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