L. E. P. Travassos, G. de S. A. e Silva, and F. de Á. C. Borges, “The Karst and the Geoheritage in Jules Verne: the example of Mathias Sandorf”, Atelie Geogr., vol. 12, no. 2, pp. 53–77, Aug. 2018, doi: 10.5216/ag.v12i2.53477.