1. On Period Relations in Babylonian Astronomy
2. Astronomical Cuneiform Texts
3. HAMA: O. Neugebauer , A History of Ancient Mathematical Astronomy.in the History of Mathematics and Physical Sciences 1 (in 3 parts). New York-Heidelberg-Berlin1975 .
4. PD3: R. Parker, and W. H. Dubberstein , Babylonian Chronology 626 B.C.A.D.75. Providence, 1956 .