@article{BletzSiebertFoertsch2007, author = {Oliver Bletz-Siebert and Thomas Foertsch}, title = {The Euclidean rank of Hilbert Geometries}, journal = {Pacific Journal of Mathematics}, volume = {231}, number = {2}, pages = {257 -- 278}, url = {http://permalink.bibkatalog.de/BV013382549}, year = {2007}, }