APA (7th ed.) Citation

Flörchinger, S., & Wetterich, C. (2009). Exact flow equation for composite operators. Physics letters, 680(4), . https://doi.org/10.1016/j.physletb.2009.09.014

Chicago Style (17th ed.) Citation

Flörchinger, Stefan, and Christof Wetterich. "Exact Flow Equation for Composite Operators." Physics Letters 680, no. 4 (2009). https://doi.org/10.1016/j.physletb.2009.09.014.

MLA (9th ed.) Citation

Flörchinger, Stefan, and Christof Wetterich. "Exact Flow Equation for Composite Operators." Physics Letters, vol. 680, no. 4, 2009, https://doi.org/10.1016/j.physletb.2009.09.014.