@article{ristov2014modeling,
  title={Modeling the Speedup for Scalable Web Services}
  author={Ristov, Sasko and Gusev, Marjan and Velkoski, Goran}
  journal={ICT Innovations 2014, Web Proceedings ISSN 1857-7288}
  pages={177--186}
  year={2014}
}