**About the Editors**

#### **Zsolt Tibor Koszty´an**

Zsolt Tibor Kosztyan, is a full professor and head of the Department of Quantitative Methods, ´ University of Pannonia. His research interest is the development of methodologies to manage complex management problems and systems relating to mathematical models and algorithms of project management, production, maintenance, and network science. This research area is on the frontier between Management Science, Applied Informatics, and Applied Network Science.

#### **Zolt ´an Kov ´acs**

Zoltan Kov ´ acs is a full professor at the Department of Supply Chain Management, University of ´ Pannonia, and the former dean of the Faculty of Business and Economics. Zoltan received his MSc ´ in Industrial Engineering from the University of Pannonia, in 1980, and his PhD from the Budapest University of Technology and Economics. He was awarded a six-month Fulbright Scholarship, in 1993–94 in the USA. Zoltan started his career in the meat industry as the head of the quality control lab ´ and later worked for a coal mining company as an IT associate. Within SCM, he has a special interest in production and service management, logistics, and maintenance. He extensively uses statistical methods and the Monte Carlo simulation. Zoltan is the author of the books 'Operations Management' ´ and 'Logistics' and co-authored—among others—'Reliability and Maintenance'.
