{"id":"001587613","type":"book","title":"Beiträge zur marxistischen Agrargeschichte Estlands der Feudalzeit","publisher":"Eesti Raamat","publisher-place":"Tallin","author":[{"family":"Kahk","given":"Juhan 1928-1998"},{"family":"Ligi","given":"Herbert M."},{"family":"Tarvel","given":"Enn 1932-"}],"issued":{"raw":"1974"}}