Czimmermann P., A Note on the Decomposition of Complete Graph into Factors with Given Diameter (in Slovak), Zbornik 2.vedeckej konferencie doktorandov, Nitra, ISBN 80-8050-386-9, 2001

Czimmermann P., Pesko S., The Regular Permutation Scheduling on Graphs, Journal of Information, Control and Management Systems, Vol.1, No.1, ISSN 1336-1716, 2003

Czimmermann P., A Note on Using Graphs in Regular Scheduling Problems, Communications, No.4, ISSN 1335-4205, 2003

Czimmermann P., The Graph Isomorphism Problem and its Applications, Journal of Information, Control and Management Systems, Vol.1, No.2, ISSN 1336-1716, 2003

Czimmermann P., A Note on the Complexity of Graph Reconstruction, Journal of Information, Control and Management Systems, Vol.2, No.1, ISSN 1336-1716, 2004

Czimmermann P., Pesko S., The Bus Schedules with Two Types of Vehicles (in Slovak), Zbornik konferencie APLIMAT, Bratislava, ISBN 80-227-1995-1, 2004

Czimmermann P., A Note on Bus Schedules with Several Types of Vehicles, Journal of Information, Control and Management Systems, Vol.2, No.2, ISSN 1336-1716, 2004

Czimmermann P., On Certain Algorithm for Graph Isomorphism Problem, Journal of Information, Control and Management Systems, Vol.3, No.1, ISSN 1336-1716, 2005

Czimmermann P., The Use of the Graphs in Modeling and Optimization of the Regular Schedules (in Slovak), Zbornik konferencie APLIMAT, Bratislava, ISBN 80-227-1995-1, 2005

Czimmermann P., The Suggestion of an Algorithm for the Graph Isomorphism Testing (in Slovak), Zbornik 6.vedeckej konferencie doktorandov, Nitra, ISBN 80-8050-813-5, 2005

Czimmermann P., On Certain Generalisation of the Reconstruction Conjecture, Zbornik 4.konference o matematice a fyzice na VST, Brno, ISBN 80-85960-91-5, 2005

Czimmermann P., Representation of the Reconstruction Conjecture by Group Actions, Journal of Information, Control and Management Systems, Vol.3, No.2, ISSN 1336-1716, 2005

Czimmermann P., The (k,n-k)-reconstruction of Graphs, Studies of the University of Zilina, Mathematical Series, ISSN 1336-149X, 2005

Czimmermann P., An Algebraic Approach to Graph Isomorphism Testing, Journal of Information, Control and Management Systems, Vol.4, No.1, ISSN 1336-1716, 2006

Czimmermann P., On a Certain Transport Scheduling Problem for Heterogeneous Bus Fleet, Communications, No.3, ISSN 1335-4205, 2006

Czimmermann P., Hypoautomorphism Groups of Graphs, Journal of Information, Control and Management Systems, Vol.4, No.2, ISSN 1336-1716, 2006

Czimmermann P., Connections between the Graph Isomorphism and the Number of Walks in Graphs, Zbornik konferencie APLIMAT, Bratislava, 2007