Thurmond, A.K., et al. (2004). The Nubian Swell, The Journal of African Earth Sciences 39 pp. 401-407. [1]Arhivirano 2011-05-25 na Wayback Machine. (accessed 21 October 2006)
web.archive.org
Thurmond, A.K., et al. (2004). The Nubian Swell, The Journal of African Earth Sciences 39 pp. 401-407. [1]Arhivirano 2011-05-25 na Wayback Machine. (accessed 21 October 2006)