APA (7th ed.) Citation

(2006). The Hofstadter butterfly in finite and infinite systems.

Chicago Style (17th ed.) Citation

The Hofstadter Butterfly in Finite and Infinite Systems. 2006.

MLA (8th ed.) Citation

The Hofstadter Butterfly in Finite and Infinite Systems. 2006.

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