1. The cost of liquidity services in listed options: a note;Baesel;Journal of Finance,1983
2. Standard deviation implied in option prices as predictors of future stock price variability;Beckers;Journal of Banking and Finance,1983
3. The efficiency of the Finnish market for rights issues: an application of the Black-Scholes model;Berglund;Journal of Business Finance and Accounting,1985
4. The KOP and the UNITAS indices for the Helsinki Stock Exchange in the light of a new value weighted index;Berglund;Finnish Journal of Business Economics,1983
5. The valuation of option contracts and a test of market efficiency;Black;Journal of Finance,1972