@article{10_4064_sm157_2_4,
     author = {Heinz K\"onig},
     title = {The (sub//super)additivity assertion of {Choquet}},
     journal = {Studia Mathematica},
     pages = {171--197},
     publisher = {mathdoc},
     volume = {157},
     number = {2},
     year = {2003},
     doi = {10.4064/sm157-2-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm157-2-4/}
}