APA (7th ed.) Citation

Patton, A., & Sheppard, K. (2009). Optimal combinations of realised volatility estimators. Elsevier.

Chicago Style (17th ed.) Citation

Patton, A., and K. Sheppard. Optimal Combinations of Realised Volatility Estimators. Elsevier, 2009.

MLA (9th ed.) Citation

Patton, A., and K. Sheppard. Optimal Combinations of Realised Volatility Estimators. Elsevier, 2009.

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