@article{10_4064_sm_100_1_25_38,
     author = {Zbigniew Gajda},
     title = {On separation theorems for subadditive and superadditive functionals},
     journal = {Studia Mathematica},
     pages = {25--38},
     publisher = {mathdoc},
     volume = {100},
     number = {1},
     year = {1991},
     doi = {10.4064/sm-100-1-25-38},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-100-1-25-38/}
}