KoltsidasMV08'

@article{DBLP:journals/pvldb/KoltsidasMV08,
  author    = {Ioannis Koltsidas and
               Heiko M{\"u}ller and
               Stratis Viglas},
  title     = {Sorting hierarchical data in external memory for archiving},
  journal   = {PVLDB},
  volume    = {1},
  number    = {1},
  year      = {2008},
  pages     = {1205-1216},
  ee        = {http://www.vldb.org/pvldb/1/1453983.pdf},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}