{"id":"000026940","type":"book","title":"The Caracol Tower at Chichen Itza: an ancient astronomical observatory? - Washington, D.C","container-title":"Science; 188.1975, no.4192, S. 977-985: zahlr. Ill.; 1 Tab","author":[{"family":"Aveni","given":"Anthony F."}],"issued":{"raw":"1975"}}