APA (7th ed.) Citation

Marabel Romo, J. (2012). Volatility regimes for the VIX index.

Chicago Style (17th ed.) Citation

Marabel Romo, Jacinto. Volatility Regimes for the VIX Index. 2012.

MLA (8th ed.) Citation

Marabel Romo, Jacinto. Volatility Regimes for the VIX Index. 2012.

Warning: These citations may not always be 100% accurate.