The minimum size of fully irregular oriented graphs. - Zofia Majcher; Jerzy Michael; Joanna Górska; Zdzislaw Skupien (Discret. Math., 2001)

Inducing regularization of graphs, multigraphs and pseudographs. - Joanna Górska; Zdzislaw Skupien (Ars Comb., 2002)

A smallest irregular oriented graph containing a given diregular one. - Joanna Górska; Zdzislaw Skupien; Zofia Majcher; Jerzy Michael (Discret. Math., 2004)

Erratum to "Inducing regularization of graphs, multigraphs and pseudographs" [Ars Combinatoria 65 (2002), 129-133]. - Joanna Górska; Zdzislaw Skupien (Ars Comb., 2007)

Trees with maximum number of maximal matchings. - Joanna Górska; Zdzislaw Skupien (Discret. Math., 2007)

Inducing regulation of any digraphs. - Joanna Górska; Zdzislaw Skupien (Discret. Appl. Math., 2009)

On detour homogeneous digraphs. - Susan A. van Aardt; Frank Bullock; Joanna Górska; Zdzislaw Skupien (Discret. Math., 2009)

Extremal irregular digraphs. - Zyta Dziechcinska-Halamoda; Joanna Górska; Zofia Majcher; Jerzy Michael; Zdzislaw Skupien (Discuss. Math. Graph Theory, 2018)