SinghT07'

@article{DBLP:journals/dam/SinghT07,
  author    = {Mohit Singh and
               Amitabha Tripathi},
  title     = {On an extremal problem related to a theorem of Whitney},
  journal   = {Discrete Applied Mathematics},
  volume    = {155},
  number    = {4},
  year      = {2007},
  pages     = {579-583},
  ee        = {http://dx.doi.org/10.1016/j.dam.2006.09.007},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}