@PhdthesisMisc{G67_922,
author = {G\"unther Friedemann Schrack},
title = {Lower bounds to the abscissa of stability of stable polynomials},
note = {Dis_no 4065, Prof. Dr. Peter Henrici},
school = {ETH Z{\"u}rich},
doi = {http://dx.doi.org/10.3929/ethz-a-000085299},
year = {1967}
}