@article{VMUMM_2010_5_a5,
     author = {I. N. Shnurnikov},
     title = {Into how many regions do $n$ lines divide the plane if at most $n-k$ of them are concurrent?},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {32--36},
     year = {2010},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2010_5_a5/}
}