@incollection{KrassWesselborg1993,
  author    = {Klaus Krass and Hans-Hermann Weßelborg},
  title     = {Bautechnische Eigenschaften von alternativen Baustoffen im Vergleich zu konventionellen Minarlstoffen},
  booktitle = {The East - West European Road Conference - 22. - 24.09.1993 - Warsaw Poland},
  year      = {1993},
}