@book{FiedlerWollert1993,
  author    = {Fiedler, J{\"o}rg and Wollert, J{\"o}rg},
  title     = {C f{\"u}r die Automatisierungspraxis : Grundlagen, Algorithmen, Beispiele},
  publisher = {D{\"u}sseldorf},
  address   = {VDI-Verl.},
  isbn      = {3-18-401320-0},
  pages     = {VIII, 278 S.},
  year      = {1993},
  language  = {de}
}
@inproceedings{PlessmannWollert1993,
  author    = {Pleßmann, K. W. and Wollert, J{\"o}rg},
  title     = {Hybride Beobachter zur Regelung arbeitspunktabh{\"a}ngiger Regelstrecken},
  series = {Berichtsband / 3. Workshop "Fuzzy Control" des GMA-UA 1.4.2 am 11./12.11.1993 in Dortmund. (Forschungsberichte / Universit{\"a}t Dortmund, Fakult{\"a}t f{\"u}r Elektrotechnik ; 2/93)},
  booktitle = {Berichtsband / 3. Workshop "Fuzzy Control" des GMA-UA 1.4.2 am 11./12.11.1993 in Dortmund. (Forschungsberichte / Universit{\"a}t Dortmund, Fakult{\"a}t f{\"u}r Elektrotechnik ; 2/93)},
  publisher = {Univ., Fak. Elektrotechnik},
  address   = {Dortmund},
  pages     = {122 -- 126},
  year      = {1993},
  language  = {de}
}
@inproceedings{WollertPlessmann1993,
  author    = {Wollert, J{\"o}rg and Plessmann, K. W.},
  title     = {Controlling processes by operating-point based hybride observers},
  series = {EUFIT '93 : September 7 - 10, 1993, Eurogress Aachen, Germany, proceedings / First European Congress on Fuzzy and Intelligent Technologies},
  booktitle = {EUFIT '93 : September 7 - 10, 1993, Eurogress Aachen, Germany, proceedings / First European Congress on Fuzzy and Intelligent Technologies},
  publisher = {Verl. d. Augustinus Buchh.},
  address   = {Aachen},
  organization    = {EUFIT <1, 1993, Aachen>},
  isbn      = {3-86073-176-9},
  pages     = {1151 -- 1155},
  year      = {1993},
  language  = {en}
}