@article{HecknerMuehlbacherWolff2008, author = {Markus Heckner and Susanne M{\"u}hlbacher and Christian Wolff}, title = {Tagging tagging. Analysing user keywords in scientific bibliography management systems}, journal = {Journal of Digital Information}, volume = {9}, number = {2}, url = {https://jodi-ojs-tdl.tdl.org/jodi/article/view/246}, year = {2008}, }