@PhdthesisMisc{A50_961, author = {Ambros Speiser}, title = {Entwurf eines elektronischen Rechenger\"ates}, note = {Dis_no 1933, Prof. Dr. Eduard Stiefel}, school = {ETH Z{\"u}rich}, doi = {http://dx.doi.org/10.3929/ethz-a-000217303}, year = {1950} }