@article{ISU_2011_11_3_a17,
     author = {M. B. Abrosimov},
     title = {On lower bound of edge number of minimal edge 1-extension of starlike tree},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {111--117},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2011_11_3_a17/}
}