@article{SchMarSun-BMC-08,
  author    = {Stefan Schulz and Korn{\'e}l Mark{\'o} and Boontawee Suntisrivaraporn},
  title     = {Formal representation of complex {SNOMED CT} expressions},
  journal   = {BMC Medical Informatics and Decision Making},
  volume    = {8},
  number    = {1},
  pages     = {S9},
  year      = {2008}
}