Voltage graphs, weight systems and odd symmetry. - Leonid Plachta (Discret. Math., 2001)

Seifert graphs and the braid index of classical and singular links. - Leonid Plachta; Jakub Przybylo; Mariusz Wozniak (Discret. Math., 2012)

Coverings of cubic graphs and 3-edge colorability. - Leonid Plachta (Discuss. Math. Graph Theory, 2021)