Jovičić Mirjana, University of Novi Sad, Faculty of Technology Novi Sad, Novi Sad, Serbia. Volume 1, No. 1, May 2019.

Ivić Mladen, University of Business Engineering and Managenet, Banja Luka, Bosnia and Herzegovina. Volume 1. No.1. May 2019.

Ikonić Bojana, University of Novi Sad, Faculty of Technology Novi Sad, Novi Sad, Serbia. Email: prodanic@tf.uns.ac.rs Volume 1, No. 1, May 2019.