The number of triangular islands on a triangular grid. - Eszter K. Horváth; Zoltán Németh; Gabriella Pluhár (Period. Math. Hung., 2009)

On Free Algebras in Varieties Generated by Iterated Semidirect Products of Semilattices. - Gábor Horváth 004; Kamilla Kátai-Urbán; Péter Pál Pach; Gabriella Pluhár; András Pongrácz; Csaba A. Szabó (Int. J. Algebra Comput., 2012)

The Number of Rooted Trees of Given Depth. - Péter Pál Pach; Gabriella Pluhár; András Pongrácz; Csaba A. Szabó (Electron. J. Comb., 2013)