@inproceedings{DaesslerOtto2015, author = {Rolf D{\"a}ßler and Anne Otto}, title = {3-D-navigation in virtual information spaces : from text-based retrieval to cognitive user interaction}, booktitle = {Classification and knowledge organization}, editor = {R{\"u}diger Klar and Otto Opitz}, pages = {324 -- 334}, doi = {10.1007/978-3-642-59051-1_34}, year = {2015}, }