De Ridder, A. (1986). Access to the stock market: An empirical study of the efficiency of the British and the Swedish primary markets. Federation of Swedish Industries.

De Ridder, Adri. Access to the Stock Market: An Empirical Study of the Efficiency of the British and the Swedish Primary Markets. Stockholm: Federation of Swedish Industries, 1986.

De Ridder, Adri. Access to the Stock Market: An Empirical Study of the Efficiency of the British and the Swedish Primary Markets. Federation of Swedish Industries, 1986.