APA (7th ed.) Citation

Knor, M., Niepel, Ľ., & Šoltés, Ľ. Centers in line graphs.

Chicago Style (17th ed.) Citation

Knor, Martin, Ľudovít Niepel, and Ľubomír Šoltés. Centers in Line Graphs.

MLA (9th ed.) Citation

Knor, Martin, et al. Centers in Line Graphs.

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