Problems in Brazilian Geology and Geomorphology Suggested by Reconnaissance in Summer of 1951. Bol. Fac. Filos. Ciênc. Let. Univ. São Paulo, Geol. 1953, Nº 9, 5-80. https://doi.org/10.11606/issn.2526-3862.bffcluspgeologia.1953.121715.