@article{HellwigVolkmann2013,
  author    = {Angelika Hellwig and Lutz Volkmann},
  title     = {Neighborhood conditions for graphs and digraphs to be maximally edge-connected},
  journal   = {Australasian journal of combinatorics},
  volume    = {Vol. 33},
  pages     = {265 -- 277},
  year      = {2013},
}