@inproceedings{HirschWahle1978,
  author    = {Hirsch, G. and Wahle, Michael},
  title     = {Design criteria for dynamic vibration absorbers with regard to the nonproportional damping},
  series = {Proceedings / The Third US National Conference on Wind Engineering Research, February 26 - March 1, 1978, University of Florida, Gainesville},
  booktitle = {Proceedings / The Third US National Conference on Wind Engineering Research, February 26 - March 1, 1978, University of Florida, Gainesville},
  editor    = {Leadon, Bernhard M.},
  publisher = {Univ. of Florida, Div. of Continuing Education Publ.},
  address   = {Gainsville, Fla.},
  pages     = {507 -- 510},
  year      = {1978},
  language  = {en}
}
@incollection{HirschWahle1978,
  author    = {Hirsch, G. and Wahle, Michael},
  title     = {Auslegungskriterien f{\"u}r Dynamische Schwingungsd{\"a}mpfer f{\"u}r schwach ged{\"a}mpfte elastische Strukturen unter Ber{\"u}cksichtigung einer der Masseverteilung nicht proportionalen Zusatzd{\"a}mpfung},
  series = {Hans Ebner : Ged{\"a}chtnis-Kolloquium am 27./28. Oktober 1977 in Aachen. - (Mitteilung aus dem Institut f{\"u}r Leichtbau, Aachen ; 1)},
  booktitle = {Hans Ebner : Ged{\"a}chtnis-Kolloquium am 27./28. Oktober 1977 in Aachen. - (Mitteilung aus dem Institut f{\"u}r Leichtbau, Aachen ; 1)},
  address   = {Aachen},
  pages     = {374 -- 400},
  year      = {1978},
  language  = {de}
}