@article{10_4064_sm171_3_4,
     author = {Jakub Onufry Wojtaszczyk},
     title = {A series whose sum range is an arbitrary finite set},
     journal = {Studia Mathematica},
     pages = {261--281},
     year = {2005},
     volume = {171},
     number = {3},
     doi = {10.4064/sm171-3-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm171-3-4/}
}