@misc{Maas1972,
  author    = {Utz Maas},
  title     = {Semantik f{\"u}r Sprechakte},
  booktitle = {Institut f{\"u}r Sprachwissenschaft, Universit{\"a}t K{\"o}ln: Arbeitspapier ; Nr. 19},
  issn      = {1615-1496},
  series    = {Arbeitspapier / Institut f{\"u}r Sprachwissenschaft, Universit{\"a}t K{\"o}ln},
  number    = {A.F. 19},
  type      = {workingpaper},
  pages     = {13},
  year        = {1972},
}