@book{MarquesdeCarvalhoJuergensen1998,
  author    = {Marques de Carvalho, Jackson W. and J{\"u}rgensen, Helmut},
  title     = {Dynamic multi-purpose mathematics notation},
  series = {Preprint / Universit{\"a}t Potsdam, Institut f{\"u}r Informatik},
  volume    = {1998, 04},
  journal   = {Preprint / Universit{\"a}t Potsdam, Institut f{\"u}r Informatik},
  publisher = {Univ.},
  address   = {Potsdam},
  issn      = {0946-7580},
  pages     = {14 Bl. : graph. Darst.},
  year      = {1998},
  language  = {en}
}