@article{IM2_2012_76_2_a0,
     author = {A. O. Ivanov and A. A. Tuzhilin},
     title = {The geometry of inner spanning trees for planar polygons},
     journal = {Izvestiya. Mathematics },
     pages = {215--244},
     publisher = {mathdoc},
     volume = {76},
     number = {2},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2012_76_2_a0/}
}