@misc{DrossardHaase,
  author    = {Werner Drossard and Martin Haase},
  title     = {Studien zur Situierung : Aspektualit{\"a}t, Modalit{\"a}t, Temporalit{\"a}t},
  series    = {Arbeiten des K{\"o}lner Universalien-Projekts : akup},
  number    = {83},
  pages     = {136},
}