1. Birkoff G. Rota G. C. , 1989, Ordinary Differential Equations, Wiley, New York.
2. Output, Stock Volatility, and Political Uncertainty in a Natural Experiment: Germany, 1880-1940
3. Black F. , 1976, “Studies of Stock, Price Volatility Changes,” Proceedings of the 1976 meetings of the Business and Economics Statistics Section, American Statistical Association.
4. ARCH modeling in finance
5. Brennan M. J. Xia Y. , 1998, “Stock Price Volatility, Learning and the Equity Premium Puzzle,” working paper, UCLA.