@article{10_4153_CMB_1994_072_1,
     author = {Katchalski, Meir and Pach, J\'anos},
     title = {Touching {Convex} {Sets} in the {Plane}},
     journal = {Canadian mathematical bulletin},
     pages = {495--504},
     year = {1994},
     volume = {37},
     number = {4},
     doi = {10.4153/CMB-1994-072-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1994-072-1/}
}