@article{10_4064_sm_61_2_115_125,
     author = {R. Urba\'nski},
     title = {Decomposition of set functions with values in a topological semigroups},
     journal = {Studia Mathematica},
     pages = {115--125},
     publisher = {mathdoc},
     volume = {61},
     number = {2},
     year = {1977},
     doi = {10.4064/sm-61-2-115-125},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-61-2-115-125/}
}