RT Article T1 The akkadian calendar at Sippar JF Journal of the American Oriental Society VO 107 IS 2 SP 209 OP 229 A1 Greengus, Samuel LA English PB American Oriental Society YR 1987 UL https://www.ixtheo.de/Record/164998703X K1 Kalender K1 Sippar DO 10.2307/602830