@PhdthesisMisc{M49_943, author = {Max Jeger}, title = {Projektive Zusammenh\"ange und Gewebe}, note = {Dis_no 1775, Prof. Dr. Eduard Stiefel}, school = {ETH Z{\"u}rich}, doi = {http://dx.doi.org/10.3929/ethz-a-000104597}, year = {1949} }