@article{HillenBarryPongs1997,
  author    = {Hillen, Walter and Barry, J. C. and Pongs, U. M.},
  title     = {Algorithm for Purkinje Image I and IV and Limbus Centre Location. Barry, J. C.; Pongs, U. M.; Hillen, W.},
  series = {Computers in Biology and Medicine. 27 (1997), H. 6},
  journal   = {Computers in Biology and Medicine. 27 (1997), H. 6},
  isbn      = {0010-4825},
  pages     = {515 -- 531},
  year      = {1997},
  language  = {en}
}
@article{HillenLehmannHornetal.1996,
  author    = {Hillen, Walter and Lehmann, T. and Horn, H. and Schmitt, W.},
  title     = {IDEFIX - Identifizierung dentaler Fixturen mit morphologischen Filtern. Lehmann, T.; Horn, H.; Schmitt, W., Hillen, W.; Spitzer, K.},
  series = {Bildverarbeitung f{\"u}r die Medizin : Algorithmen - Systeme - Anwendungen ; proceedings des Aachener Workshops am 8. und 9. November 1996 / Institut f{\"u}r Medizinische Informatik und Biometrie der RWTH Aachen. Hrsg. von Thomas Lehmann ...},
  journal   = {Bildverarbeitung f{\"u}r die Medizin : Algorithmen - Systeme - Anwendungen ; proceedings des Aachener Workshops am 8. und 9. November 1996 / Institut f{\"u}r Medizinische Informatik und Biometrie der RWTH Aachen. Hrsg. von Thomas Lehmann ...},
  publisher = {Verl. der Augustinus-Buchh.},
  address   = {Aachen},
  isbn      = {3-86073-519-5},
  pages     = {327 -- 332},
  year      = {1996},
  language  = {de}
}
@article{HillenLehmannHornetal.1996,
  author    = {Hillen, Walter and Lehmann, T. and Horn, H. and Schmitt, W.},
  title     = {Identification of Dental Fixtures in Intraoral X-rays. Lehmann, T.; Hillen, W.; Horn, H.; Schmitt, W.},
  series = {Medical imaging 1996 : image processing ; 12 - 15 February 1996, Newport Beach, California / Murray H. Loew ... chairs/ed.},
  journal   = {Medical imaging 1996 : image processing ; 12 - 15 February 1996, Newport Beach, California / Murray H. Loew ... chairs/ed.},
  publisher = {SPIE - The International Society for Optical Engineering},
  address   = {Bellingham, Wash.},
  isbn      = {0-8194-2085-9},
  pages     = {584 -- 584},
  year      = {1996},
  language  = {en}
}
@article{HillenLehmannHornetal.1995,
  author    = {Hillen, Walter and Lehmann, T. and Horn, H. and Schmitt, W.},
  title     = {IDEFIX - Identification of Dental Fixtures. Lehmann, T.; Hillen, W.; Horn, H.; Schmitt, W.},
  series = {5th European Congress on Dental and Maxillo-Facial Radiology : 30th Annual meeting of Working Group for Dental Radiology in the German Scientific Society for Dentistry, November 8-11, 1995, Cologne : abstracts},
  journal   = {5th European Congress on Dental and Maxillo-Facial Radiology : 30th Annual meeting of Working Group for Dental Radiology in the German Scientific Society for Dentistry, November 8-11, 1995, Cologne : abstracts},
  pages     = {[120] B. : graph. Darst.},
  year      = {1995},
  language  = {en}
}
@article{HillenSchmittBockemuehl1995,
  author    = {Hillen, Walter and Schmitt, W. and Bockem{\"u}hl, J.},
  title     = {Signal-to-Noise Performance of a digital dental X-ray Detector},
  series = {Computer assisted radiology : proceedings of the International Symposium on Computer and Communication Systems for Image Guided Diagnosis and Therapy / CAR '95 Berlin, June 21 - 24, 1995. Ed. by H. U. Lemke},
  journal   = {Computer assisted radiology : proceedings of the International Symposium on Computer and Communication Systems for Image Guided Diagnosis and Therapy / CAR '95 Berlin, June 21 - 24, 1995. Ed. by H. U. Lemke},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-59177-X},
  pages     = {LXXIV, 1442 S. : Ill., graph. Darst.},
  year      = {1995},
  language  = {en}
}
@article{HillenEckenbachQuadfliegetal.1991,
  author    = {Hillen, Walter and Eckenbach, W. and Quadflieg, Peter and Zaengel, Thomas T.},
  title     = {Signal-to-noise performance of a CsI fluorescent screen},
  series = {Medical Imaging V: Image physics},
  journal   = {Medical Imaging V: Image physics},
  isbn      = {0-8194-0538-8},
  pages     = {120 -- 131},
  year      = {1991},
  language  = {en}
}
@article{HillenRuppSchiebeletal.1989,
  author    = {Hillen, Walter and Rupp, S. and Schiebel, U. and Zaengel, Thomas T.},
  title     = {Imaging performance of a selenium-based detector for high-resolution radiography},
  series = {Medical Imaging III: Image Formation},
  journal   = {Medical Imaging III: Image Formation},
  isbn      = {0-8194-0125-0},
  pages     = {296},
  year      = {1989},
  language  = {en}
}
@article{HillenSchiebelZaengel1988,
  author    = {Hillen, Walter and Schiebel, U. and Zaengel, T.},
  title     = {A selenium-based detector for digital slot-radiography},
  series = {Medical Imaging II},
  journal   = {Medical Imaging II},
  pages     = {253},
  year      = {1988},
  language  = {en}
}
@article{HillenSchiebelZaengel1986,
  author    = {Hillen, Walter and Schiebel, U. and Zaengel, T.},
  title     = {Image quality in selenium-based digital radiography. Schiebel, U.; Hillen, W.; Zaengel, T.},
  series = {Medical Imaging},
  journal   = {Medical Imaging},
  pages     = {176},
  year      = {1986},
  language  = {en}
}
@article{HillenSchiebelZaengel1987,
  author    = {Hillen, Walter and Schiebel, U. and Zaengel, T.},
  title     = {Imaging performance of a digital storage phosphor system},
  series = {Medical Physics. 14 (1987), H. 5},
  journal   = {Medical Physics. 14 (1987), H. 5},
  isbn      = {0094-2405},
  pages     = {744 -- 751},
  year      = {1987},
  language  = {en}
}
@article{Hillen1982,
  author    = {Hillen, Walter},
  title     = {A measurement of \&\#963;tot(e+e\&\#8722; \&\#8594; hadrons) for cm energies between 12.0 and 36.7 GeV. TASSO Collaboration},
  series = {Physics Letters B. 113 (1982), H. 6},
  journal   = {Physics Letters B. 113 (1982), H. 6},
  pages     = {499 -- 508},
  year      = {1982},
  language  = {en}
}
@misc{SponagelMasbergHartmann1999,
  author    = {Sponagel, Stefan and Masberg, Mariane and Hartmann, Jochen},
  title     = {Kraftfahrzeugk{\"u}hlwasserpumpe : Offenlegungsschrift DE19803739A1 ; Ver{\"o}ffentlichungstag im Patentblatt: 12.08.1999},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {6 S. : Ill.},
  year      = {1999},
  language  = {de}
}
@misc{SponagelWachowitz1990,
  author    = {Sponagel, Stefan and Wachowitz, Waldemar},
  title     = {Wellendichtung : Offenlegungsschrift DE3830706A1 ; Ver{\"o}ffentlichungstag im Patentblatt: 22.03.1990 / Anmelder: Fa. Carl Freudenberg},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {4 S. : Ill.},
  year      = {1990},
  language  = {de}
}
@misc{GrafGrossSponagel1987,
  author    = {Graf, G{\"u}nter and Groß, Heinz and Sponagel, Stefan},
  title     = {Verfahren zur Herstellung eines Dichtringes mit einer Dichtlippe : Patentschrift DE3621241C1 ; Ver{\"o}ffentlichungstag der Patenterteilung : 25.06.1987},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {5 S. : Ill.},
  year      = {1987},
  language  = {de}
}
@misc{SponagelGrafGross1987,
  author    = {Sponagel, Stefan and Graf, G{\"u}nter and Groß, Heinz},
  title     = {Verfahren zur Herstellung eines Dichtringes : Patentschrift DE3621242C1 ; Ver{\"o}ffentlichungstag der Patenterteilung : 25.06.1987 / Anmelder: Fa. Carl Freudenberg. Erfinder: G{\"u}nter Graf ; Heinz Groß ; Stefan Sponagel},
  publisher = {Deutsches Patent- und Markenamt},
  address   = {M{\"u}nchen},
  pages     = {5 S. : Ill.},
  year      = {1987},
  language  = {de}
}
@book{SponagelWachowitz1993,
  author    = {Sponagel, Stefan and Wachowitz, Waldemar},
  title     = {Wellendichtung : Europ{\"a}ische Patentschrift DE3621242C1 ; Ver{\"o}ffentlichungstag der Patentschrift : 06.06.1993 / Anmelder: Fa. Carl Freudenberg},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {[M{\"u}nchen u.a.]},
  pages     = {5 S. : Ill.},
  year      = {1993},
  language  = {de}
}
@article{Hillen1982,
  author    = {Hillen, Walter},
  title     = {Scale braking in inclusive charged particle production by e--e+ annihilation. TASSO Collaboration},
  series = {Physics Letters B. 114 (1982), H. 1},
  journal   = {Physics Letters B. 114 (1982), H. 1},
  isbn      = {0370-2693},
  pages     = {65 -- 70},
  year      = {1982},
  language  = {en}
}
@article{Hillen1980,
  author    = {Hillen, Walter},
  title     = {Charged pion, kaon, proton and antiproton production in high energy e+e\&\#8722; annihilations. TASSO Collaboration},
  series = {Physics Letters B. 94 (1980), H. 3},
  journal   = {Physics Letters B. 94 (1980), H. 3},
  isbn      = {0370-2693},
  pages     = {444 -- 449},
  year      = {1980},
  language  = {en}
}
@article{Hillen1980,
  author    = {Hillen, Walter},
  title     = {Comparison of e+e\&\#8722; annihilation with QCD and determination of the strong coupling constant . TASSO Collaboration},
  series = {Physics Letters B. 94 (1980), H. 3},
  journal   = {Physics Letters B. 94 (1980), H. 3},
  isbn      = {0370-2693},
  pages     = {437 -- 443},
  year      = {1980},
  language  = {en}
}
@article{Hillen1980,
  author    = {Hillen, Walter},
  title     = {K0 production in e+e\&\#8722; annihilations at 30 GeV center of mass energy. TASSO Collaboration},
  series = {Physics Letters B. 94 (1980), H. 1},
  journal   = {Physics Letters B. 94 (1980), H. 1},
  isbn      = {0370-2693},
  pages     = {91 -- 95},
  year      = {1980},
  language  = {en}
}