APA (7th ed.) Citation

Niepel, Ľ., Šoltés, Ľ., & Knor, M. CENTERS IN ITERATED LINE GRAPHS.

Chicago Style (17th ed.) Citation

Niepel, Ľudovít, Ľ Šoltés, and Martin Knor. CENTERS IN ITERATED LINE GRAPHS.

MLA (9th ed.) Citation

Niepel, Ľudovít, et al. CENTERS IN ITERATED LINE GRAPHS.