APA (7th ed.) Citation

Linux-Kongress Hamburg & Spenneberg, R. (2005). Proceedings. Lehmann.

Chicago Style (17th ed.) Citation

Linux-Kongress Hamburg and Ralf Spenneberg. Proceedings. [Berlin]: Lehmann, 2005.

MLA (9th ed.) Citation

Linux-Kongress Hamburg and Ralf Spenneberg. Proceedings. Lehmann, 2005.

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