APA (7th ed.) Citation
Lyócsa, Š., Výrost, T., & Baumöhl, E. (2011). <The> instability of the correlation structure of the S&P 500.
Chicago Style (17th ed.) Citation
Lyócsa, Štefan, Tomáš Výrost, and Eduard Baumöhl. <The> Instability of the Correlation Structure of the S&P 500. Munich, 2011.
MLA (9th ed.) Citation
Lyócsa, Štefan, et al. <The> Instability of the Correlation Structure of the S&P 500. 2011.
Warning: These citations may not always be 100% accurate.