@article{10_14708_ma_v45i2_6349,
     author = {Aneta Antkowiak},
     title = {Analysis of the efficiency of complex systems},
     journal = {Mathematica Applicanda},
     pages = { 127 -- 152},
     publisher = {mathdoc},
     volume = {45},
     number = {2},
     year = {2017},
     doi = {10.14708/ma.v45i2.6349},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/ma.v45i2.6349/}
}