@article{HelsperMoelterKaminski1989,
  author    = {Helsper, Christoph and M{\"o}lter, W. and Kaminski, S.},
  title     = {Fast and Automated Testing of Different Air Filter Media / M{\"o}lter, W. ; Helsper, C. ; Kaminski, S.},
  series = {Proceedings of the Filtech Conference, Karlsruhe 1989, Vol. 1},
  journal   = {Proceedings of the Filtech Conference, Karlsruhe 1989, Vol. 1},
  publisher = {Filtration Society},
  address   = {Oadby},
  pages     = {125 -- 136},
  year      = {1989},
  language  = {en}
}
@book{Hodapp1989,
  author    = {Hodapp, Josef},
  title     = {Die direkte Selbst-Regelung einer Asynchronmaschine mit einem Signalprozessor},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-147508-4},
  pages     = {II, 148 S. : graph. Darst.},
  year      = {1989},
  language  = {de}
}
@article{HoylerCollinsEid1989,
  author    = {Hoyler, Friedrich and Collins, S. P. and Eid, S. A.},
  title     = {A search for mixed-symmetry states in the mass A approximately 50 region / S. P. Collins ; S. A. Eid ... F. Hoyler},
  series = {Journal of Physics G. 15 (1989), H. 3},
  journal   = {Journal of Physics G. 15 (1989), H. 3},
  isbn      = {0954-3899},
  pages     = {321 -- 332},
  year      = {1989},
  language  = {en}
}
@article{Kern1989,
  author    = {Kern, Alexander},
  title     = {Time dependent temperature distribution in metal sheets caused by direct lightning strikes},
  series = {Proceedings / Sixth International Symposium on High Voltage Engineering : 28. August - 1. September, 1989, Westin Canal Place Hotel, New Orleans, Louisiana, USA},
  journal   = {Proceedings / Sixth International Symposium on High Voltage Engineering : 28. August - 1. September, 1989, Westin Canal Place Hotel, New Orleans, Louisiana, USA},
  publisher = {Mississippi State University},
  address   = {Mississippi State, Miss.},
  year      = {1989},
  language  = {en}
}
@article{KernLangWiesingeretal.1989,
  author    = {Kern, Alexander and Lang, U. and Wiesinger, J. and Zischank, Wolfgang J.},
  title     = {The longitudinal voltage of cable tubes with a screening mesh caused by partial lightning currents},
  series = {Proceedings / Sixth International Symposium on High Voltage Engineering : 28. August - 1. September, 1989, Westin Canal Place Hotel, New Orleans, Louisiana, USA},
  journal   = {Proceedings / Sixth International Symposium on High Voltage Engineering : 28. August - 1. September, 1989, Westin Canal Place Hotel, New Orleans, Louisiana, USA},
  publisher = {Mississippi State University},
  address   = {Mississippi State, Miss.},
  year      = {1989},
  language  = {en}
}
@article{LueckGerlingPredel1989,
  author    = {L{\"u}ck, Reinhard and Gerling, Ulrich and Predel, Bruno},
  title     = {An entropy paradox of the association model},
  series = {Zeitschrift f{\"u}r Metallkunde : international journal of materials research and advanced techniques. Bd. 80, H. 4},
  journal   = {Zeitschrift f{\"u}r Metallkunde : international journal of materials research and advanced techniques. Bd. 80, H. 4},
  issn      = {0044-3093 ; 0179-4841},
  pages     = {270 -- 275},
  year      = {1989},
  language  = {en}
}