@article{Ангелов_2017, title={Virtual environments as a method for increasing knowledge and reducing stress}, volume={12}, url={https://vsim-journal.info/index.php?journal=vsim&page=article&op=view&path[]=135}, number={1}, journal={Vanguard Scientific Instruments in Management}, author={Ангелов, Орлин}, year={2017}, month={Nov.}