@article{mihova2012the,
  title={The Optimization of the Profit of a Parallel System with Independent Components and Linear Repairing Cost}
  author={Mihova, Marija and Ilijoski, Bojan and Stojkovich, Natasha}
  journal={ICT Innovations 2012, Web Proceedings ISSN 1857-7288}
  pages={507--516}
  year={2012}
}