APA   Click to copy
Steenbergen, M. R., Bächtiger, A., Spörndli, M., & Steiner, J. (2003). Measuring {Political} {Deliberation}: {A} {Discourse} {Quality} {Index}. Comparative European Politics, 1, 21–48. https://doi.org/10.1057/palgrave.cep.6110002

Chicago/Turabian   Click to copy
Steenbergen, Marco R, André Bächtiger, Markus Spörndli, and Jürg Steiner. “Measuring {Political} {Deliberation}: {A} {Discourse} {Quality} {Index}.” Comparative European Politics 1 (March 2003): 21–48.

MLA   Click to copy
Steenbergen, Marco R., et al. “Measuring {Political} {Deliberation}: {A} {Discourse} {Quality} {Index}.” Comparative European Politics, vol. 1, Mar. 2003, pp. 21–48, doi:10.1057/palgrave.cep.6110002.

@article{steenbergen2003a,
  title = {Measuring {Political} {Deliberation}: {A} {Discourse} {Quality} {Index}},
  year = {2003},
  month = mar,
  journal = {Comparative European Politics},
  pages = {21--48},
  volume = {1},
  doi = {10.1057/palgrave.cep.6110002},
  author = {Steenbergen, Marco R and Bächtiger, André and Spörndli, Markus and Steiner, Jürg},
  month_numeric = {3}
}