How big is a black hole?

MLA

Christodoulou, Marios, and Carlo Rovelli. How Big Is a Black Hole? 2014. EBSCOhost, https://doi.org/10.1103/PhysRevD.91.064046.

APA

Christodoulou, M., & Rovelli, C. (2014). How big is a black hole? https://doi.org/10.1103/PhysRevD.91.064046

Chicago

Christodoulou, Marios, and Carlo Rovelli. 2014. “How Big Is a Black Hole?” doi:10.1103/PhysRevD.91.064046.