{"id":"000661881","type":"article","title":"First National Symposium on Archaeoastronomy, with international participation, on the occasion of 100 years from the establishment of the University of Sofia \"Kliment Ohridski\". Programme Tolbuchin 1988, 22 - 24 November","pages":"3-135","container-title":"Interdisciplinarni izsledvanija, 14.1986","issued":{"raw":"1986"}}