APA (7th ed.) Citation

Cotton, A., & Freeman, D. The double bubble problem in spherical and hyperbolic space. Wiley.

Chicago Style (17th ed.) Citation

Cotton, Andrew, and David Freeman. The Double Bubble Problem in Spherical and Hyperbolic Space. Wiley.

MLA (9th ed.) Citation

Cotton, Andrew, and David Freeman. The Double Bubble Problem in Spherical and Hyperbolic Space. Wiley.

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