Herrero, P. Prado, J. Garcia- Guinea, E. Crespo- Feo, V. Correcher, e C. Menor. 2009. “First Find of Kristiansenite in Spain: Comparison With the Type Specimen by Non-Destructive Techniques”. Estudos Geológicos 19 (2):135-39. https://periodicos.ufpe.br/revistas/estudosgeologicos/article/view/259839.