- Computer Aided Design for Spatial Railway Transition Curves,
L. Lazarevic, Z. Popovic and L. Puzavac
Paper 69 from CCP: 98, ISBN 978-1-905088-53-9 (2012)
- The Potential for Passenger Rail Transportation in the Republic of Serbia,
Z. Popovic, L. Lazarevic and L. Puzavac
Paper 168 from CCP: 98, ISBN 978-1-905088-53-9 (2012)