@article{10_4064_sm189_1_1,
     author = {J. Grzybowski and D. Pallaschke and R. Urba\'nski},
     title = {On the reduction of pairs of bounded closed convex sets},
     journal = {Studia Mathematica},
     pages = {1--12},
     year = {2008},
     volume = {189},
     number = {1},
     doi = {10.4064/sm189-1-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm189-1-1/}
}