A. Hoffmann, E. Sidorowicz, L. Volkmann

Extremal bipartite graphs with a unique k-factor

Z. Palka, M. Sperling

In-degree sequence in a general model of a random digraph

M. Poschen, L. Volkmann

A lower bound for the irredundance number of trees

A.P. Wojda

Self-complementary hypergraphs

C. Adiga, M. Smitha

An upper bound for maximum number of edges in a strongly multiplicative graph

R. Hammack

Isomorphic components of direct products of bipartite graphs

R. Gera, P. Zhang

On stratification and domination in graphs

I.E. Zverovich

On a perfect problem

W. Frydrych, A. Żak

Preface to proceedings

J. Bucko, P. Mihók

On uniquely partitionable relational structures and object systems

S. Cichacz, A. Gőrlich, A. Marczyk, J. Przybyło, M. Woźniak

Arbitrarily vertex decomposable caterpillars with four or five leaves

J. Cyman, M. Lemańska, J. Raczek

Graphs with convex domination number close to their order

Z. Dziechcińska-Halamoda, Z. Majcher, J. Michael, Z. Skupień

Extremum degree sets of irregular oriented graphs and pseudodigraphs

E. Flandrin, H. Li, A. Marczyk, I. Schiermeyer, M. Woźniak

Chvátal-Erdös condition and pancyclism

D. Froncek, U. Leck

Orthogonal double covers of complete graphs by fat catepillars

Problem D. Froncek and M. Kubesa