@article {IOPORT.50148873,
    author       = {Kipp, Alexander and Jiang, Tao and Fugini, Mariagrazia and Salomie, Ioan},
    title        = {Layered Green performance indicators},
    year         = {2012},
    journal      = {Future Generation Comp. Syst.},
    volume       = {28},
    number       = {2},
    pages        = {478-489},
    doi          = {10.1016/j.future.2011.05.005},
    identifier   = {50148873},
}