1. Orlovsky I., Identification of thermal phenomena in technological processes, PhD thesis, FVT TU Košice so sídlom v Prešove, Prešov (2008).
2. Orlovsky I., Hatala M., Janak M, Creation of simulation model of ceramic granulate production in spraying kiln, Technical Gazette, Vol. 17, No. 4, (Dec2010), pp.419-423, ISSN 1330-3651.
3. Michalik P., Zajac J., Using of computer integrated system for static tests of pipe conveyer belts, In: Proceedings of the 2012 13th International Carpathian Control Conference, ICCC 2012, Pages 480-484, High Tatras Slovakia; 28 May 2012- 31 May 2012, ISBN: 978-145771868-7.
4. Zajac J., Hutyrová Z., Tarasovičová A., Assessment of statistical signification of factors by machining inhomogeneous materials – WPC, In: Applied Mechanics and Materials, Volume 308, 2013, Pages 165-169, ISSN: 1660-9336.
5. Čuma M., Zajac J., The impact analysis of cutting fluids aerosols on working environment and contamination of reservoirs, Tehnicki Vjesnik, Volume 19, Issue 2, June 2012, Pages 443-446, ISSN: 1330-3651.