@article{Fister2013HybridBatAlgorithm,
  title={A Hybrid Bat Algorithm},
  author={Fister Jr., Iztok and Fister, Du{\v{s}}an and Yang, Xin-She},
  journal={Elektrotehni\v{s}ki vestnik},
  volume={80},
  number={1-2},
  pages={1--7},
  year={2013}
}