Hivatkozások:
1. https://ifst.onlinelibrary.wiley.com/doi/10.1111/ijfs.13180
2. https://www.ekosfop.or.kr/archive/view_article?pid=kjfp-28-4-540
3. https://ift.onlinelibrary.wiley.com/doi/abs/10.1111/1750-3841.16239
4. https://www.tandfonline.com/doi/full/10.1080/19476337.2023.2249068#abstract