@article{RM_2010_65_4_a2,
     author = {V. I. Danilov and A. V. Karzanov and G. A. Koshevoy},
     title = {Separated set-systems and their geometric models},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {659--740},
     publisher = {mathdoc},
     volume = {65},
     number = {4},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2010_65_4_a2/}
}