APA (7th ed.) Citation

Vlk, K., & Kellenberger, M. Martin Kellenberger.

Chicago Style (17th ed.) Citation

Vlk, Karol, and Martin Kellenberger. Martin Kellenberger.

MLA (9th ed.) Citation

Vlk, Karol, and Martin Kellenberger. Martin Kellenberger.

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