APA (7th ed.) Citation

Wetterich, C. (2021). The great emptiness at the beginning of the Universe. Physics letters, 818, . https://doi.org/10.1016/j.physletb.2021.136355

Chicago Style (17th ed.) Citation

Wetterich, Christof. "The Great Emptiness at the Beginning of the Universe." Physics Letters 818 (2021). https://doi.org/10.1016/j.physletb.2021.136355.

MLA (9th ed.) Citation

Wetterich, Christof. "The Great Emptiness at the Beginning of the Universe." Physics Letters, vol. 818, 2021, https://doi.org/10.1016/j.physletb.2021.136355.