?url_ver=Z39.88-2004&rft_id=10.2495%2FSC210421&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Karaeva&rft.aufirst=A.&rft.au=Karaeva%2C+A.&rft.date=2021&rft.atitle=APPROACHES+to+the+ASSESSMENT+of+ECOLOGICAL+and+ECONOMIC+EFFICIENCY+of+INVESTMENT+PROJECTS%3A+BRIEF+REVIEW+and+RECOMMENDATIONS+for+IMPROVEMENTS&rft.volume=253&rft.title=WIT+Transactions+on+Ecology+and+the+Environment&rft.pages=515-525&rft.issn=1746448X&rft.genre=article