[1] Hormuzd Rassam, Asshur and the Land of Nimrod: Being an Account of the Discoveries Made in the Ancient Ruins of Nineveh, Asshur, Sepharvaim, Calah, [etc]..., Curts & Jennings, 1897
[2] Alfred Jeremias, The Babylonian conception of heaven and hell, D. Nutt, 1902
