Buckle, M., & Gwilym, O. A. (1994). The efficiency of stock and options markets: Tests based on 1992 UK election opinion polls. Applied Financial Economics, 4(5), pp. 345-354. doi:10.1080/758536472

Buckle, Mike, and Owain AP Gwilym. "The Efficiency of Stock and Options Markets: Tests Based On 1992 UK Election Opinion Polls." Applied Financial Economics 4, no. 5 (1994): 345-354.

Buckle, Mike, and Owain AP Gwilym. "The Efficiency of Stock and Options Markets: Tests Based On 1992 UK Election Opinion Polls." Applied Financial Economics 4.5 (1994): 345-354.