-LONG, D, J., et al., "Black Henbane (Hyoscyamus nigerL.) in the Scottish Neolithic: A Re-evaluation of Palynological Findings from Grooved Ware Pottery at Balfarg Riding School and Henge, Fife", Antiquity, 74, 2000, pp. 49-53.
-LONG, D, J., et al., "Black Henbane (Hyoscyamus nigerL.) in the Scottish Neolithic: A Re-evaluation of Palynological Findings from Grooved Ware Pottery at Balfarg Riding School and Henge, Fife", Antiquity, 74, 2000, pp. 49-53.