@phdthesis{74890,
  author = {F.R.A. Hopgood},
  title = {GKS, the first graphics standard},
  year = {1981},
  journal = {Seminar on Graphical Applications in Meteorology, 19-23 October 1981},
  pages = {4.1-4.21},
  month = {1981},
  publisher = {ECMWF},
  address = {Shinfield Park, Reading},
  language = {eng},
}