• Nonlinear chirp pulse excitation for the fast impedance spectroscopyOjarand, Jaan; Annus, Paul; Land, Raul; Parve, Toomas; Min, MartElektronika ir elektrotechnika = Electronics and electrical engineering2010 / 4, p. 73-76 : ill https://www.researchgate.net/publication/268367878_Nonlinear_Chirp_Pulse_Excitation_for_the_Fast_Impedance_Spectroscopy