Guido Stehr Helmut E. Graeb Kurt Antreich Analog Performance Space Exploration by Normal-Boundary Intersection and by Fourier-Motzkin Elimination. 1733-1748 2007 26 IEEE Trans. on CAD of Integrated Circuits and Systems 10 http://dx.doi.org/10.1109/TCAD.2007.895756 db/journals/tcad/tcad26.html#StehrGA07