@article{kakol_ratusinski_2007, 
  title={The role of computer in the process of solving of mathematical problems (results of research)}, 
  DOI={10.5485/tmcs.2007.0136}, 
  publisher={University of Debrecen/ Debreceni Egyetem}, 
  author={Kakol and Ratusinski}, 
  year={2007}
  }