@Article{,
 author = {L. Dymava, D. Sevastsyanau, P. Sevastsyanau},
 title = {Application of fuzzy sets theory methods for the evaluation of investment efficiency parameters},
 journal = {Fuzzy economic review},
 year = {2000},
 volume = {(5)},
 number = {1},
 pages = { 77 -- 87}
 }