@article{gülyaz_karapınar_rakocević_salimi_2013, 
  title={Existence of a solution of integral equations via fixed point theorem}, 
  volume={2013}, 
  DOI={10.1186/1029-242x-2013-529}, 
  publisher={Springer Nature}, 
  author={Gülyaz and Karapınar and Rakocević and Salimi}, 
  year={2013}
  }