1. Price Movements in Speculative Markets: Trends or Random Walks;Sidney;Industrial Management Review,May, 1961
2. Price Movements in Speculative Markets: Trends or Random Walks, Number 2;Sidney;Industrial Management Review,Spring, 1964
3. The Behavior of Stock-Market Prices;Eugene;Journal of Business,January, 1965
4. Filter Rules and Stock Market Trading;Eugene;Journal of Business,January, 1966