ISAAC: a symbolic simulator for analog integrated circuits. - Georges G. E. Gielen; Herman C. C. Walscharts; Willy M. C. Sansen (IEEE J. Solid State Circuits, 1989)

Analog circuit design optimization based on symbolic simulation and simulated annealing. - Georges G. E. Gielen; Herman C. C. Walscharts; Willy M. C. Sansen (IEEE J. Solid State Circuits, 1990)