@article{DBLP:journals/dm/LuWW99,
  author    = {Xiaoyun Lu and
               Da-Wei Wang and
               C. K. Wong},
  title     = {The strong Hall property and symmetric chain orders},
  journal   = {Discrete Mathematics},
  volume    = {203},
  number    = {1-3},
  year      = {1999},
  pages     = {161-168},
  ee        = {http://dx.doi.org/10.1016/S0012-365X(99)00003-5},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}