Knudsen, C.; Thomsen, T. B.; Kalsbeek, F.; Kristensen, J. A.; Vital, H.; McLimans, R. K. Composition of Ilmenite and Provenance of Zircon in Northern Brazil. GEUS Bulletin 2015, 33, 81-84. https://doi.org/10.34194/geusb.v33.4515.